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format-version: 1.2
data-version: uo/releases/2023-05-25/uo-base.owl
ontology: uo/uo-base
property_value: http://purl.org/dc/elements/1.1/type IAO:8000001
property_value: owl:versionInfo "2023-05-25" xsd:string
[Term]
id: UO:0000000
name: unit
comment: "A unit of measurement is a standardized quantity of a physical quality." [Wikipedia:Wikipedia]
[Term]
id: UO:0000001
name: length unit
comment: "A unit which is a standard measure of the distance between two points." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000002
name: mass unit
comment: "A unit which is a standard measure of the amount of matter/energy of a physical object." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000003
name: time unit
comment: "A unit which is a standard measure of the dimension in which events occur in sequence." [Wikipedia:Wikipedia]
synonym: "time derived unit" EXACT []
is_a: UO:0000000 ! unit
[Term]
id: UO:0000004
name: electric current unit
comment: "A unit which is a standard measure of the flow of electric charge." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000005
name: temperature unit
comment: "A unit which is a standard measure of the average kinetic energy of the particles in a sample of matter." [Wikipedia:Wikipedia]
synonym: "temperature derived unit" EXACT []
is_a: UO:0000000 ! unit
[Term]
id: UO:0000006
name: substance unit
comment: "A unit which is a standardised quantity of an element or compound with uniform composition." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000007
name: luminous intensity unit
comment: "A unit which is a standard measure of the wavelength-weighted power emitted by a light source in a particular direction." [Wikipedia:Wikipedia]
is_a: UO:0000157 ! light unit
[Term]
id: UO:0000008
name: meter
comment: "A length unit which is equal to the length of the path traveled by light in vacuum during a time interval of 1/299 792 458 of a second." [BIPM:BIPM, NIST:NIST]
synonym: "m" EXACT []
synonym: "metre" EXACT []
is_a: UO:0000001 ! length unit
is_a: UO:0000045 ! base unit
is_a: UO:1000008 ! meter based unit
[Term]
id: UO:0000009
name: kilogram
comment: "A mass unit which is equal to the mass of the International Prototype Kilogram kept by the BIPM at Svres, France." [BIPM:BIPM, NIST:NIST]
synonym: "kg" EXACT []
is_a: UO:0000002 ! mass unit
is_a: UO:0000045 ! base unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000294 ! kilo
[Term]
id: UO:0000010
name: second
comment: "A time unit which is equal to the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom." [BIPM:BIPM, NIST:NIST]
synonym: "s" EXACT []
is_a: UO:0000003 ! time unit
is_a: UO:0000045 ! base unit
is_a: UO:1000010 ! second based unit
[Term]
id: UO:0000011
name: ampere
comment: "An electric current unit which is equal to the constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 m apart in vacuum, would produce between these conductors a force equal to 2 x 10^[-7] newton per meter of length." [BIPM:BIPM, NIST:NIST]
synonym: "A" EXACT []
is_a: UO:0000004 ! electric current unit
is_a: UO:0000045 ! base unit
is_a: UO:1000011 ! ampere based unit
[Term]
id: UO:0000012
name: kelvin
comment: "A thermodynamic temperature unit which is equal to the fraction 1/273.16 of the thermodynamic temperature of the triple point of water." [BIPM:BIPM, NIST:NIST]
synonym: "K" EXACT []
is_a: UO:0000005 ! temperature unit
is_a: UO:0000045 ! base unit
is_a: UO:1000012 ! kelvin based unit
[Term]
id: UO:0000013
name: mole
comment: "A substance unit which is equal to the amount of substance of a molecular system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12." [BIPM:BIPM, NIST:NIST]
synonym: "mol" EXACT []
is_a: UO:0000006 ! substance unit
is_a: UO:0000045 ! base unit
is_a: UO:1000013 ! mole based unit
[Term]
id: UO:0000014
name: candela
comment: "A luminous intensity unit which equal to the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian." [BIPM:BIPM, NIST:NIST]
synonym: "cd" EXACT []
is_a: UO:0000007 ! luminous intensity unit
is_a: UO:0000045 ! base unit
is_a: UO:1000014 ! candela based unit
[Term]
id: UO:0000015
name: centimeter
comment: "A length unit which is equal to one hundredth of a meter or 10^[-2] m." [NIST:NIST]
synonym: "centimetre" EXACT []
synonym: "cm" EXACT []
is_a: UO:0000001 ! length unit
intersection_of: UO:1000008 ! meter based unit
intersection_of: has:prefix UO:0000298 ! centi
[Term]
id: UO:0000016
name: millimeter
comment: "A length unit which is equal to one thousandth of a meter or 10^[-3] m." [NIST:NIST]
synonym: "millimetre" EXACT []
synonym: "mm" EXACT []
is_a: UO:0000001 ! length unit
intersection_of: UO:1000008 ! meter based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000017
name: micrometer
comment: "A length unit which is equal to one millionth of a meter or 10^[-6] m." [NIST:NIST]
synonym: "micrometre" EXACT []
synonym: "micron" EXACT []
synonym: "um" EXACT []
is_a: UO:0000001 ! length unit
intersection_of: UO:1000008 ! meter based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000018
name: nanometer
comment: "A length unit which is equal to one thousandth of one millionth of a meter or 10^[-9] m." [NIST:NIST]
synonym: "nanometre" EXACT []
synonym: "nm" EXACT []
is_a: UO:0000001 ! length unit
intersection_of: UO:1000008 ! meter based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000019
name: angstrom
comment: "A length unit which is equal to 10 [-10] m." [NIST:NIST]
synonym: "Å" EXACT []
is_a: UO:0000001 ! length unit
is_a: UO:1000019 ! angstrom based unit
[Term]
id: UO:0000020
name: picometer
comment: "A length unit which is equal to 10^[-12] m." [NIST:NIST]
synonym: "picometre" EXACT []
synonym: "pm" EXACT []
is_a: UO:0000001 ! length unit
intersection_of: UO:1000008 ! meter based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000021
name: gram
comment: "A mass unit which is equal to one thousandth of a kilogram or 10^[-3] kg." [NIST:NIST]
synonym: "g" EXACT []
is_a: UO:0000002 ! mass unit
is_a: UO:1000021 ! gram based unit
[Term]
id: UO:0000022
name: milligram
comment: "A mass unit which is equal to one thousandth of a gram or 10^[-3] g." [UOC:GVG]
synonym: "mg" EXACT []
is_a: UO:0000002 ! mass unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000023
name: microgram
comment: "A mass unit which is equal to one millionth of a gram or 10^[-6] g." [UOC:GVG]
synonym: "ug" EXACT []
is_a: UO:0000002 ! mass unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000024
name: nanogram
comment: "A mass unit which is equal to one thousandth of one millionth of a gram or 10^[-9] g." [UOC:GVG]
synonym: "ng" EXACT []
is_a: UO:0000002 ! mass unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000025
name: picogram
comment: "A mass unit which is equal to 10^[-12] g." [UOC:GVG]
synonym: "pg" EXACT []
is_a: UO:0000002 ! mass unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000026
name: femtogram
comment: "A mass unit which is equal to 10^[-15] g." [NIST:NIST]
synonym: "fg" EXACT []
is_a: UO:0000002 ! mass unit
intersection_of: UO:1000021 ! gram based unit
intersection_of: has:prefix UO:0000303 ! femto
[Term]
id: UO:0000027
name: degree Celsius
comment: "A temperature unit which is equal to one kelvin degree. However, they have their zeros at different points. The centigrade scale has its zero at 273.15 K." [NIST:NIST]
synonym: "C" EXACT []
is_a: UO:0000005 ! temperature unit
is_a: UO:1000027 ! degree Celsius based unit
[Term]
id: UO:0000028
name: millisecond
comment: "A time unit which is equal to one thousandth of a second or 10^[-3] s." [NIST:NIST]
synonym: "ms" EXACT []
is_a: UO:0000003 ! time unit
intersection_of: UO:1000010 ! second based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000029
name: microsecond
comment: "A time unit which is equal to one millionth of a second or 10^[-6] s." [NIST:NIST]
synonym: "us" EXACT []
is_a: UO:0000003 ! time unit
intersection_of: UO:1000010 ! second based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000030
name: picosecond
comment: "A time unit which is equal to 10^[-12] s." [NIST:NIST]
synonym: "ps" EXACT []
is_a: UO:0000003 ! time unit
intersection_of: UO:1000010 ! second based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000031
name: minute
comment: "A time unit which is equal to 60 seconds." [Wikipedia:Wikipedia]
synonym: "min" EXACT []
is_a: UO:0000003 ! time unit
is_a: UO:1000031 ! minute based unit
[Term]
id: UO:0000032
name: hour
comment: "A time unit which is equal to 3600 seconds or 60 minutes." [Wikipedia:Wikipedia]
synonym: "h" EXACT []
is_a: UO:0000003 ! time unit
is_a: UO:1000032 ! hour based unit
[Term]
id: UO:0000033
name: day
comment: "A time unit which is equal to 24 hours." [Wikipedia:Wikipedia]
is_a: UO:0000003 ! time unit
is_a: UO:1000033 ! day based unit
[Term]
id: UO:0000034
name: week
comment: "A time unit which is equal to 7 days." [Wikipedia:Wikipedia]
is_a: UO:0000003 ! time unit
is_a: UO:1000034 ! week based unit
[Term]
id: UO:0000035
name: month
comment: "A time unit which is approximately equal to the length of time of one of cycle of the moon's phases which in science is taken to be equal to 30 days." [Wikipedia:Wikipedia]
is_a: UO:0000003 ! time unit
is_a: UO:1000035 ! month based unit
[Term]
id: UO:0000036
name: year
comment: "A time unit which is equal to 12 months which in science is taken to be equal to 365.25 days." [Wikipedia:Wikipedia]
is_a: UO:0000003 ! time unit
is_a: UO:1000036 ! year based unit
[Term]
id: UO:0000037
name: milliampere
comment: "An electric current unit current which is equal to one thousandth of an ampere or 10^[-3] A." [UOC:GVG]
synonym: "mA" EXACT []
is_a: UO:0000004 ! electric current unit
intersection_of: UO:1000011 ! ampere based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000038
name: microampere
comment: "An electric current unit current which is equal to one millionth of an ampere or 10^[-6] A." [UOC:GVG]
synonym: "uA" EXACT []
is_a: UO:0000004 ! electric current unit
intersection_of: UO:1000011 ! ampere based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000039
name: micromole
comment: "A substance unit equal to a millionth of a mol or 10^[-6] mol." [NIST:NIST]
synonym: "umol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000040
name: millimole
comment: "A substance unit equal to a thousandth of a mol or 10^[-3] mol." [NIST:NIST]
synonym: "mmol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000041
name: nanomole
comment: "A substance unit equal to one thousandth of one millionth of a mole or 10^[-9] mol." [NIST:NIST]
synonym: "nmol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000042
name: picomole
comment: "A substance unit equal to 10^[-12] mol." [NIST:NIST]
synonym: "pmol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000043
name: femtomole
comment: "A substance unit equal to 10^[-15] mol." [NIST:NIST]
synonym: "fmol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000303 ! femto
[Term]
id: UO:0000044
name: attomole
comment: "A substance unit equal to 10^[-18] mol." [NIST:NIST]
synonym: "amol" EXACT []
is_a: UO:0000006 ! substance unit
intersection_of: UO:1000013 ! mole based unit
intersection_of: has:prefix UO:0000304 ! atto
[Term]
id: UO:0000045
name: base unit
comment: "A unit which is one of a particular measure to which all measures of that type can be related." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000046
name: prefix
[Term]
id: UO:0000047
name: area unit
comment: "A unit which is a standard measure of the amount of a 2-dimensional flat surface." [UOC:GVG]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000048
name: acceleration unit
comment: "A unit which is a standard measure of the rate of change of velocity in either speed or direction." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000049
name: angular velocity unit
comment: "A unit which is a standard measure of the rate of angular movement about an axis; the angle rotated in a given time." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000050
name: angular acceleration unit
comment: "A unit which is a standard measure of the rate of change of angular velocity." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000051
name: concentration unit
comment: "A unit which represents a standard measurement of how much of a given substance there is mixed with another substance." [UOC:GVG]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000052
name: mass density unit
comment: "A density unit which is a standard measure of the mass of a substance in a given volume." [UOC:GVG]
synonym: "mass per unit volume" EXACT []
is_a: UO:0000182 ! density unit
[Term]
id: UO:0000053
name: luminance unit
comment: "A unit which is a standard measure of the luminous intensity impinging on a given area." [Wikipedia:Wikipedia]
is_a: UO:0000157 ! light unit
[Term]
id: UO:0000054
name: area density unit
comment: "A density unit which is a standard measure of the mass exerting an influence on a given area." [Wikipedia:Wikipedia]
synonym: "mass per unit area unit" EXACT []
is_a: UO:0000182 ! density unit
[Term]
id: UO:0000055
name: molar mass unit
comment: "A unit which is a standard measure of the mass of a homogeneous substance containing 6.02 x 1023 atoms or molecules." [Wikipedia:Wikipedia]
is_a: UO:0000002 ! mass unit
[Term]
id: UO:0000056
name: molar volume unit
comment: "A unit which is a standard measure of the volume of a homogeneous substance containing 6.02 x 1023 atoms or molecules." [Wikipedia:Wikipedia]
is_a: UO:0000095 ! volume unit
[Term]
id: UO:0000057
name: momentum unit
comment: "A unit which is a standard measure of the quantity of motion measured by the product of mass and velocity." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000058
name: rotational frequency unit
comment: "A unit which is a standard measure of the number of rotations in a given time." [NIST:NIST]
is_a: UO:0000105 ! frequency unit
[Term]
id: UO:0000059
name: specific volume unit
comment: "A unit which is a standard measure of the volume of a given mass of substance (the reciprocal of density)." [Wikipedia:Wikipedia]
is_a: UO:0000095 ! volume unit
[Term]
id: UO:0000060
name: speed/velocity unit
comment: "A unit which is a standard measure of the rate of movement. Speed is measured in the same physical units of measurement as velocity, but does not contain the element of direction that velocity has. Speed is thus the magnitude component of velocity." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000061
name: unit of molarity
comment: "A concentration unit which is a standard measure of the number of moles of a given substance per liter of solution." [UOC:GVG]
is_a: UO:0000051 ! concentration unit
[Term]
id: UO:0000062
name: molar
comment: "A unit of concentration which expresses a concentration of 1 mole of solute per liter of solution (mol/L)." [UOC:GVG]
synonym: "M" EXACT []
is_a: UO:0000061 ! unit of molarity
is_a: UO:1000062 ! molar based unit
[Term]
id: UO:0000063
name: millimolar
comment: "A unit of molarity which is equal to one thousandth of a molar or 10^[-3] M." [UOC:GVG]
synonym: "mM" EXACT []
is_a: UO:0000061 ! unit of molarity
intersection_of: UO:1000062 ! molar based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000064
name: micromolar
comment: "A unit of molarity which is equal to one millionth of a molar or 10^[-6] M." [UOC:GVG]
synonym: "uM" EXACT []
is_a: UO:0000061 ! unit of molarity
intersection_of: UO:1000062 ! molar based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000065
name: nanomolar
comment: "A unit of molarity which is equal to one thousandth of one millionth of a molar or 10^[-9] M." [UOC:GVG]
synonym: "nM" EXACT []
is_a: UO:0000061 ! unit of molarity
intersection_of: UO:1000062 ! molar based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000066
name: picomolar
comment: "A unit of molarity which is equal to 10^[-12] M." [UOC:GVG]
synonym: "pM" EXACT []
is_a: UO:0000061 ! unit of molarity
intersection_of: UO:1000062 ! molar based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000067
name: unit of molality
comment: "A concentration unit which is a standard measure of the number of moles of a given substance per kilogram of solvent." [UOC:GVG]
is_a: UO:0000051 ! concentration unit
[Term]
id: UO:0000068
name: molal
comment: "A unit of concentration which expresses a concentration of a solution of 1 mole per kilogram of solvent (mol/kg)." [UOC:GVG]
synonym: "m" EXACT []
is_a: UO:0000067 ! unit of molality
is_a: UO:1000068 ! molal based unit
[Term]
id: UO:0000069
name: millimolal
comment: "A molality unit which is equal to one thousandth of a molal or 10^[-3] m." [UOC:GVG]
synonym: "mm" EXACT []
is_a: UO:0000067 ! unit of molality
intersection_of: UO:1000068 ! molal based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000070
name: micromolal
comment: "A molality unit which is equal to one millionth of a molal or 10^[-6] m." [UOC:GVG]
synonym: "um" EXACT []
is_a: UO:0000067 ! unit of molality
intersection_of: UO:1000068 ! molal based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000071
name: nanomolal
comment: "A molality unit which is equal to one thousandth of one millionth of a molal or 10^[-9] m." [UOC:GVG]
synonym: "nm" EXACT []
is_a: UO:0000067 ! unit of molality
intersection_of: UO:1000068 ! molal based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000072
name: picomolal
comment: "A molality unit which is equal to 10^[-12] m." [UOC:GVG]
synonym: "pm" EXACT []
is_a: UO:0000067 ! unit of molality
intersection_of: UO:1000068 ! molal based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000073
name: femtomolar
comment: "A unit of molarity which is equal to 10^[-15] M." [UOC:GVG]
synonym: "fM" EXACT []
is_a: UO:0000061 ! unit of molarity
intersection_of: UO:1000062 ! molar based unit
intersection_of: has:prefix UO:0000303 ! femto
[Term]
id: UO:0000074
name: unit of normality
comment: "A unit of concentration which highlights the chemical nature of salts." [Wikipedia:Wikipedia]
is_a: UO:0000051 ! concentration unit
[Term]
id: UO:0000075
name: normal
comment: "A unit of concentration which is one gram equivalent of a solute per liter of solution. A gram equivalent weight or equivalent is a measure of the reactive capacity of a given molecule." [Wikipedia:Wikipedia]
synonym: "N" EXACT []
is_a: UO:0000074 ! unit of normality
is_a: UO:1000075 ! normal based unit
[Term]
id: UO:0000076
name: mole fraction
comment: "A concentration unit which denotes the number of moles of solute as a proportion of the total number of moles in a solution." [Wikipedia:Wikipedia]
synonym: "(x)" EXACT []
synonym: "chi" EXACT []
is_a: UO:0000051 ! concentration unit
is_a: UO:0000191 ! fraction
is_a: UO:1000076 ! mole fraction based unit
[Term]
id: UO:0000077
name: meter per second per second
comment: "An acceleration unit which is equal to the acceleration an object changing its velocity by 1meter/s over a time period that equals one second." [NIST:NIST]
synonym: "m/s^[2]" EXACT []
synonym: "metre per second per second" EXACT []
is_a: UO:0000048 ! acceleration unit
is_a: UO:1000077 ! meter per second per second based unit
[Term]
id: UO:0000078
name: radian per second per second
comment: "An angular unit acceleration which is equal to the angular acceleration of an object changing its angular velocity by 1rad/s over a time period that equals one second." [NIST:NIST]
synonym: "alpha" EXACT []
synonym: "rad/s^[2]" EXACT []
is_a: UO:0000050 ! angular acceleration unit
is_a: UO:1000078 ! radian per second per second based unit
[Term]
id: UO:0000079
name: radian per second
comment: "An angular unit velocity which is equal to about 9.54930 rpm (revolutions per minute)." [NIST:NIST]
synonym: "rad/s" EXACT []
is_a: UO:0000049 ! angular velocity unit
is_a: UO:1000079 ! radian per second based unit
[Term]
id: UO:0000080
name: square meter
comment: "An area unit which is equal to an area enclosed by a square with sides each 1 meter long." [NIST:NIST]
synonym: "m^[2]" EXACT []
synonym: "square metre" EXACT []
is_a: UO:0000047 ! area unit
is_a: UO:1000080 ! square meter based unit
[Term]
id: UO:0000081
name: square centimeter
comment: "An area unit which is equal to one ten thousandth of a square meter or 10^[-4] m^[2]." [NIST:NIST]
synonym: "cm^[2]" EXACT []
synonym: "square centimetre" EXACT []
is_a: UO:0000047 ! area unit
is_a: UO:1000081 ! square centimeter based unit
[Term]
id: UO:0000082
name: square millimeter
comment: "An area unit which is equal to one millionth of a square meter or 10^[-6] m^[2]." [NIST:NIST]
synonym: "mm^[2]" EXACT []
synonym: "square millimetre" EXACT []
is_a: UO:0000047 ! area unit
is_a: UO:1000082 ! square millimeter based unit
[Term]
id: UO:0000083
name: kilogram per cubic meter
comment: "A mass unit density which is equal to mass of an object in kilograms divided by the volume in cubic meters." [UOC:GVG]
synonym: "kg/m^[3]" EXACT []
synonym: "kilogram per cubic metre" EXACT []
is_a: UO:0000052 ! mass density unit
[Term]
id: UO:0000084
name: gram per cubic centimeter
comment: "A mass unit density which is equal to mass of an object in grams divided by the volume in cubic centimeters." [UOC:GVG]
synonym: "g/cm^[3]" EXACT []
synonym: "gram per cubic centimetre" EXACT []
is_a: UO:0000052 ! mass density unit
is_a: UO:1000084 ! gram per cubic centimeter based unit
[Term]
id: UO:0000085
name: candela per square meter
comment: "A luminance unit which is equal to a luminous intensity of one candela radiating from a surface whose area is one square meter." [NIST:NIST]
synonym: "candela per square metre" EXACT []
synonym: "cd/m^[2]" EXACT []
is_a: UO:0000053 ! luminance unit
is_a: UO:1000085 ! candela per square meter based unit
[Term]
id: UO:0000086
name: kilogram per square meter
comment: "An area density unit which is equal to the mass of an object in kilograms divided by the surface area in meters squared." [NIST:NIST]
synonym: "kg/m^[2]" EXACT []
synonym: "kilogram per square metre" EXACT []
is_a: UO:0000054 ! area density unit
intersection_of: UO:1010049 ! gram per square meter based unit
intersection_of: has:prefix UO:0000294 ! kilo
[Term]
id: UO:0000087
name: kilogram per mole
comment: "A molar mass unit which is equal to one kilogram of mass of one mole of chemical element or chemical compound." [NIST:NIST]
synonym: "kg/mol" EXACT []
is_a: UO:0000055 ! molar mass unit
intersection_of: UO:1000088 ! gram per mole based unit
intersection_of: has:prefix UO:0000294 ! kilo
[Term]
id: UO:0000088
name: gram per mole
comment: "A molar mass unit which is equal to one gram of mass of one mole of chemical element or chemical compound." [NIST:NIST]
synonym: "g/mol" EXACT []
is_a: UO:0000055 ! molar mass unit
is_a: UO:1000088 ! gram per mole based unit
[Term]
id: UO:0000089
name: cubic meter per mole
comment: "A molar volume unit which is equal to 1 cubic meter occupied by one mole of a substance in the form of a solid, liquid, or gas." [NIST:NIST]
synonym: "cubic metre per mole" EXACT []
synonym: "m^[3]/mol" EXACT []
is_a: UO:0000056 ! molar volume unit
is_a: UO:1000089 ! cubic meter per mole based unit
[Term]
id: UO:0000090
name: cubic centimeter per mole
comment: "A molar volume unit which is equal to 1 cubic centimeter occupied by one mole of a substance in the form of a solid, liquid, or gas." [NIST:NIST]
synonym: "cm^[3]/mol" EXACT []
synonym: "cubic centimetre per mole" EXACT []
is_a: UO:0000056 ! molar volume unit
is_a: UO:1000090 ! cubic centimeter per mole based unit
[Term]
id: UO:0000091
name: kilogram meter per second
comment: "A momentum unit which is equal to the momentum of a one kilogram mass object with a speed of one meter per second." [NIST:NIST]
synonym: "kg.m/s" EXACT []
synonym: "kilogram metre per second" EXACT []
is_a: UO:0000057 ! momentum unit
[Term]
id: UO:0000092
name: turns per second
comment: "A rotational frequency unit which is equal to the number complete turn in a period of time that equals to 1 second." [NIST:NIST]
synonym: "1/s" EXACT []
synonym: "one turn per second" EXACT []
is_a: UO:0000058 ! rotational frequency unit
is_a: UO:1000092 ! turns per second based unit
[Term]
id: UO:0000093
name: cubic meter per kilogram
comment: "A specific volume unit which is equal to one cubic meter volume occupied by one kilogram of a particular substance." [NIST:NIST]
synonym: "cubic metre per kilogram" EXACT []
synonym: "m^[3]/kg" EXACT []
is_a: UO:0000059 ! specific volume unit
is_a: UO:1000093 ! cubic meter per kilogram based unit
[Term]
id: UO:0000094
name: meter per second
comment: "A speed/velocity unit which is equal to the speed of an object traveling 1 meter distance in one second." [NIST:NIST]
synonym: "m/s" EXACT []
synonym: "metre per second" EXACT []
is_a: UO:0000060 ! speed/velocity unit
is_a: UO:1000094 ! meter per second based unit
[Term]
id: UO:0000095
name: volume unit
comment: "A unit which is a standard measure of the amount of space occupied by any substance, whether solid, liquid, or gas." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000096
name: cubic meter
comment: "A volume unit which is equal to the volume of a cube with edges one meter in length. One cubic meter equals to 1000 liters." [NIST:NIST]
synonym: "cubic metre" EXACT []
synonym: "m^[3]" EXACT []
is_a: UO:0000095 ! volume unit
is_a: UO:1000096 ! cubic meter based unit
[Term]
id: UO:0000097
name: cubic centimeter
comment: "A volume unit which is equal to one millionth of a cubic meter or 10^[-9] m^[3], or to 1 ml." [NIST:NIST]
synonym: "cc" EXACT []
synonym: "cm^3" EXACT []
synonym: "cubic centimetre" EXACT []
is_a: UO:0000095 ! volume unit
is_a: UO:1000097 ! cubic centimeter based unit
[Term]
id: UO:0000098
name: milliliter
comment: "A volume unit which is equal to one thousandth of a liter or 10^[-3] L, or to 1 cubic centimeter." [NIST:NIST]
synonym: "millilitre" EXACT []
synonym: "ml" EXACT []
is_a: UO:0000095 ! volume unit
intersection_of: UO:1000099 ! liter based unit
intersection_of: has:prefix UO:0000297 ! milli
[Term]
id: UO:0000099
name: liter
comment: "A volume unit which is equal to one thousandth of a cubic meter or 10^[-3] m^[3], or to 1 decimeter." [NIST:NIST]
synonym: "L" EXACT []
synonym: "l" EXACT []
synonym: "litre" EXACT []
is_a: UO:0000095 ! volume unit
is_a: UO:1000099 ! liter based unit
[Term]
id: UO:0000100
name: cubic decimeter
comment: "A volume unit which is equal to one thousand of a cubic meter or 10^[-3] m^[3], or to 1 L." [NIST:NIST]
synonym: "cubic decimetre" EXACT []
synonym: "dm^[3]" EXACT []
is_a: UO:0000095 ! volume unit
is_a: UO:1000100 ! cubic decimeter based unit
[Term]
id: UO:0000101
name: microliter
comment: "A volume unit which is equal to one millionth of a liter or 10^[-6] L." [NIST:NIST]
synonym: "microlitre" EXACT []
synonym: "ul" EXACT []
is_a: UO:0000095 ! volume unit
intersection_of: UO:1000099 ! liter based unit
intersection_of: has:prefix UO:0000299 ! micro
[Term]
id: UO:0000102
name: nanoliter
comment: "A volume unit which is equal to one thousandth of one millionth of a liter or 10^[-9] L." [NIST:NIST]
synonym: "nanolitre" EXACT []
synonym: "nl" EXACT []
is_a: UO:0000095 ! volume unit
intersection_of: UO:1000099 ! liter based unit
intersection_of: has:prefix UO:0000300 ! nano
[Term]
id: UO:0000103
name: picoliter
comment: "A volume unit which is equal to 10^[-12] L." [NIST:NIST]
synonym: "picolitre" EXACT []
synonym: "pl" EXACT []
is_a: UO:0000095 ! volume unit
intersection_of: UO:1000099 ! liter based unit
intersection_of: has:prefix UO:0000302 ! pico
[Term]
id: UO:0000104
name: femtoliter
comment: "A volume unit which is equal to 10^[-15] L." [NIST:NIST]
synonym: "femtolitre" EXACT []
synonym: "fl" EXACT []
is_a: UO:0000095 ! volume unit
intersection_of: UO:1000099 ! liter based unit
intersection_of: has:prefix UO:0000303 ! femto
[Term]
id: UO:0000105
name: frequency unit
comment: "A unit which is a standard measure of the number of repetitive actions in a particular time." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000106
name: hertz
comment: "A frequency unit which is equal to 1 complete cycle of a recurring phenomenon in 1 second." [NIST:NIST]
synonym: "Hz" EXACT []
synonym: "s^1" EXACT []
is_a: UO:0000105 ! frequency unit
is_a: UO:1000106 ! hertz based unit
[Term]
id: UO:0000107
name: force unit
comment: "A unit which is a standard measure of the force is applied when a mass is accelerated." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000108
name: newton
comment: "A force unit which is equal to the force required to cause an acceleration of 1m/s2 of a mass of 1 Kg in the direction of the force." [NIST:NIST]
synonym: "N" EXACT []
is_a: UO:0000107 ! force unit
is_a: UO:1000108 ! newton based unit
[Term]
id: UO:0000109
name: pressure unit
comment: "A unit which is a standard measure of the force applied to a given area." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000110
name: pascal
comment: "A pressure unit which is equal to the pressure or stress on a surface caused by a force of 1 newton spread over a surface of 1 m^[2]." [NIST:NIST]
synonym: "Pa" EXACT []
is_a: UO:0000109 ! pressure unit
is_a: UO:1000110 ! pascal based unit
[Term]
id: UO:0000111
name: energy unit
comment: "A unit which is a standard measure of the work done by a certain force (gravitational, electric, magnetic, force of inertia, etc)." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000112
name: joule
comment: "An energy unit which is equal to the energy required when a force of 1 newton moves an object 1 meter in the direction of the force." [NIST:NIST]
synonym: "J" EXACT []
is_a: UO:0000111 ! energy unit
is_a: UO:1000112 ! joule based unit
[Term]
id: UO:0000113
name: power unit
comment: "A unit which is a standard measure power or the rate of doing work." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000114
name: watt
comment: "A power unit which is equal to the power used when work is done at the rate of 1 joule per second." [NIST:NIST]
synonym: "W" EXACT []
is_a: UO:0000113 ! power unit
is_a: UO:1000114 ! watt based unit
[Term]
id: UO:0000115
name: illuminance unit
comment: "A unit which is a standard measure of the luminous flux incident on a unit area." [Wikipedia:Wikipedia]
is_a: UO:0000157 ! light unit
[Term]
id: UO:0000116
name: lux
comment: "An illuminance unit which is equal to the illuminance produced by 1 lumen evenly spread over an area 1 m^[2]." [NIST:NIST]
synonym: "lx" EXACT []
is_a: UO:0000115 ! illuminance unit
is_a: UO:1000116 ! lux based unit
[Term]
id: UO:0000117
name: luminous flux unit
comment: "A unit which is a standard measure of the flow of radiant energy." [Wikipedia:Wikipedia]
is_a: UO:0000157 ! light unit
[Term]
id: UO:0000118
name: lumen
comment: "A luminous flux unit which is equal to the luminous flux emitted into 1 steradian by a point source of 1 candela." [NIST:NIST]
synonym: "lm" EXACT []
is_a: UO:0000117 ! luminous flux unit
is_a: UO:1000118 ! lumen based unit
[Term]
id: UO:0000119
name: catalytic activity unit
comment: "A unit which is a standard measure of the amount of the action of a catalyst." [NIST:NIST]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000120
name: katal
comment: "A catalytic unit activity which is equal to the activity of a catalyst in moles per second, such as the amount of an enzyme needed to transform one mole of substrate per second." [NIST:NIST]
synonym: "kat" EXACT []
is_a: UO:0000119 ! catalytic activity unit
is_a: UO:1000120 ! katal based unit
[Term]
id: UO:0000121
name: angle unit
comment: "A unit which is a standard measure of the figure or space formed by the junction of two lines or planes." [Wikipedia:Wikipedia]
is_a: UO:0000000 ! unit
[Term]
id: UO:0000122
name: plane angle unit
comment: "A unit which is a standard measure of the angle formed by two straight lines in the same plane." [Wikipedia:Wikipedia]
is_a: UO:0000121 ! angle unit
[Term]
id: UO:0000123
name: radian
comment: "A plane angle unit which is equal to the angle subtended at the center of a circle by an arc equal in length to the radius of the circle, approximately 57 degrees 17 minutes and 44.6 seconds." [NIST:NIST]
synonym: "rad" EXACT []
is_a: UO:0000122 ! plane angle unit
is_a: UO:1000123 ! radian based unit
[Term]
id: UO:0000124