]> definition imported from has_alternative_id has_exact_synonym has_obo_namespace has_related_synonym in_subset unit A unit of measurement is a standardized quantity of a physical quality. UO:0000000 george gkoutos unit.ontology mass unit A unit which is a standard measure of the amount of matter/energy of a physical object. UO:0000002 george gkoutos unit.ontology time unit A unit which is a standard measure of the dimension in which events occur in sequence. UO:0000003 UO:0000149 george gkoutos time derived unit unit.ontology meter 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. UO:0000008 george gkoutos m metre unit.ontology kilogram A mass unit which is equal to the mass of the International Prototype Kilogram kept by the BIPM at Svres, France. UO:0000009 george gkoutos kg unit.ontology second 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. UO:0000010 george gkoutos s unit.ontology ampere A 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. UO:0000011 george gkoutos unit.ontology kelvin A thermodynamic temperature unit which is equal to the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. K UO:0000012 george gkoutos unit.ontology mole 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. UO:0000013 george gkoutos mol unit.ontology candela 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. UO:0000014 cd george gkoutos unit.ontology gram A mass unit which is equal to one thousandth of a kilogram or 10^[-3] kg. UO:0000021 g george gkoutos unit.ontology milligram A mass unit which is equal to one thousandth of a gram or 10^[-3] g. UO:0000022 george gkoutos mg unit.ontology microgram A mass unit which is equal to one millionth of a gram or 10^[-6] g. UO:0000023 george gkoutos ug unit.ontology nanogram A mass unit which is equal to one thousandth of one millionth of a gram or 10^[-9] g. UO:0000024 george gkoutos ng unit.ontology picogram A mass unit which is equal to 10^[-12] g. UO:0000025 george gkoutos pg unit.ontology femtogram A mass unit which is equal to 10^[-15] g. UO:0000026 fg george gkoutos unit.ontology millisecond A time unit which is equal to one thousandth of a second or 10^[-3] s. UO:0000028 george gkoutos ms unit.ontology microsecond A time unit which is equal to one millionth of a second or 10^[-6] s. UO:0000029 george gkoutos unit.ontology us picosecond A time unit which is equal to 10^[-12] s. UO:0000030 george gkoutos ps unit.ontology minute A time unit which is equal to 60 seconds. UO:0000031 george gkoutos min unit.ontology hour A time unit which is equal to 3600 seconds or 60 minutes. UO:0000032 george gkoutos h unit.ontology day A time unit which is equal to 24 hours. UO:0000033 george gkoutos unit.ontology week A time unit which is equal to 7 days. UO:0000034 george gkoutos unit.ontology month 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. UO:0000035 george gkoutos unit.ontology year A time unit which is equal to 12 months which is science is taken to be equal to 365.25 days. UO:0000036 george gkoutos unit.ontology base unit A unit which is one of a particular measure to which all measures of that type can be related. UO:0000045 george gkoutos unit.ontology prefix 2012-06-13T01:09:05Z UO:0000046 gkoutos unit.ontology area unit A unit which is a standard measure of the amount of a 2-dimensional flat surface. UO:0000047 george gkoutos unit.ontology concentration unit A unit which represents a standard measurement of how much of a given substance there is mixed with another substance. UO:0000051 george gkoutos unit.ontology molar mass unit A unit which is a standard measure of the mass of a homogeneous substance containing 6.02 x 1023 atoms or molecules. UO:0000055 george gkoutos unit.ontology molar volume unit A unit which is a standard measure of the volume of a homogeneous substance containing 6.02 x 1023 atoms or molecules. UO:0000056 george gkoutos unit.ontology specific volume unit A unit which is a standard measure of the volume of a given mass of substance (the reciprocal of density). UO:0000059 george gkoutos unit.ontology unit of molarity A concentration unit which is a standard measure of the number of moles of a given substance per liter of solution. UO:0000061 george gkoutos unit.ontology molar A unit of concentration which expresses a concentration of 1 mole of solute per liter of solution (mol/L). M UO:0000062 george gkoutos unit.ontology millimolar A unit of molarity which is equal to one thousandth of a molar or 10^[-3] M. UO:0000063 george gkoutos mM unit.ontology micromolar A unit of molarity which is equal to one millionth of a molar or 10^[-6] M. UO:0000064 george gkoutos uM unit.ontology nanomolar A unit of molarity which is equal to one thousandth of one millionth of a molar or 10^[-9] M. UO:0000065 george gkoutos nM unit.ontology picomolar A unit of molarity which is equal to 10^[-12] M. UO:0000066 george gkoutos pM unit.ontology unit of molality A concentration unit which is a standard measure of the number of moles of a given substance per kilogram of solvent. UO:0000067 george gkoutos unit.ontology molal A unit of concentration which expresses a concentration of a solution of 1 mole per kilogram of solvent (mol/kg). UO:0000068 george gkoutos m unit.ontology millimolal A molality unit which is equal to one thousandth of a molal or 10^[-3] m. UO:0000069 george gkoutos mm unit.ontology micromolal A molality unit which is equal to one millionth of a molal or 10^[-6] m. UO:0000070 george gkoutos um unit.ontology nanomolal A molality unit which is equal to one thousandth of one millionth of a molal or 10^[-9] m. UO:0000071 george gkoutos nm unit.ontology picomolal A molality unit which is equal to 10^[-12] m. UO:0000072 george gkoutos pm unit.ontology femtomolar A unit of molarity which is equal to 10^[-15] M. UO:0000073 fM george gkoutos unit.ontology unit of normality A unit of concentration which highlights the chemical nature of salts. UO:0000074 george gkoutos unit.ontology normal 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. N UO:0000075 george gkoutos unit.ontology mole fraction (x) A concentration unit which denotes the number of moles of solute as a proportion of the total number of moles in a solution. UO:0000076 chi george gkoutos unit.ontology square meter An area unit which is equal to an area enclosed by a square with sides each 1 meter long. UO:0000080 george gkoutos m^[2] square metre unit.ontology square centimeter An area unit which is equal to one thousand of square meter or 10^[-3] m^[2]. UO:0000081 cm^[2] george gkoutos square centimetre unit.ontology square millimeter An area unit which is equal to one millionth of a square meter or 10^[-6] m^[2]. UO:0000082 george gkoutos mm^[2] square millimetre unit.ontology kilogram per mole A molar mass unit which is equal to one kilogram of mass of one mole of chemical element or chemical compound. UO:0000087 george gkoutos kg/mol unit.ontology gram per mole A molar mass unit which is equal to one gram of mass of one mole of chemical element or chemical compound. UO:0000088 g/mol george gkoutos unit.ontology cubic meter per mole 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. UO:0000089 cubic metre per mole george gkoutos m^[3]/mol unit.ontology cubic centimeter per mole 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. UO:0000090 cm^[3]/mol cubic centimetre per mole george gkoutos unit.ontology cubic meter per kilogram A specific volume unit which is equal to one cubic meter volume occupied by one kilogram of a particular substance. UO:0000093 cubic metre per kilogram george gkoutos m^[3]/kg unit.ontology volume unit A unit which is a standard measure of the amount of space occupied by any substance, whether solid, liquid, or gas. UO:0000095 george gkoutos unit.ontology cubic meter 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. UO:0000096 cubic metre george gkoutos m^[3] unit.ontology cubic centimeter A volume unit which is equal to one millionth of a cubic meter or 10^[-9] m^[3], or to 1 ml. UO:0000097 cc cm^3 cubic centimetre george gkoutos unit.ontology milliliter A volume unit which is equal to one thousandth of a liter or 10^[-3] L, or to 1 cubic centimeter. UO:0000098 george gkoutos millilitre ml unit.ontology liter A volume unit which is equal to one thousandth of a cubic meter or 10^[-3] m^[3], or to 1 decimeter. L UO:0000099 george gkoutos l litre unit.ontology cubic decimeter A volume unit which is equal to one thousand of a cubic meter or 10^[-3] m^[3], or to 1 L. UO:0000100 cubic decimetre dm^[3] george gkoutos unit.ontology microliter A volume unit which is equal to one millionth of a liter or 10^[-6] L. UO:0000101 george gkoutos microlitre ul unit.ontology nanoliter A volume unit which is equal to one thousandth of one millionth of a liter or 10^[-9] L. UO:0000102 george gkoutos nanolitre nl unit.ontology picoliter A volume unit which is equal to 10^[-12] L. UO:0000103 george gkoutos picolitre pl unit.ontology femtoliter A volume unit which is equal to 10^[-15] L. UO:0000104 femtolitre fl george gkoutos unit.ontology nanosecond A time unit which is equal to one thousandth of one millionth of a second or 10^[-9] s. UO:0000150 george gkoutos ns unit.ontology century A time unit which is equal to 100 years. UO:0000151 george gkoutos unit.ontology half life A time unit which represents the period over which the activity or concentration of a specified chemical or element falls to half its original activity or concentration. Typically applied to the half life of radioactive atoms but also applicable to any other situation where the population is of molecules of diminishing concentration or activity. UO:0000152 george gkoutos unit.ontology mass percentage A dimensionless concentration unit which denotes the mass of a substance in a mixture as a percentage of the mass of the entire mixture. UO:0000163 george gkoutos unit.ontology w/w weight-weight percentage mass volume percentage (w/v) A dimensionless concentration unit which denotes the mass of the substance in a mixture as a percentage of the volume of the entire mixture. UO:0000164 george gkoutos unit.ontology weight-volume percentage volume percentage % (v/v) A dimensionless concentration unit which denotes the volume of the solute in mL per 100 mL of the resulting solution. UO:0000165 george gkoutos unit.ontology unit per volume unit A concentration unit which is a standard measure of the number of units, as an agreed arbitrary amount, of a given substance per a specific volume of solution. UO:0000177 george gkoutos unit.ontology unit per milliliter A unit per milliliter unit which is equal to one unit of an agreed arbitrary amount per one milliliter. U/ml UO:0000178 george gkoutos unit per millilitre unit.ontology unit per liter A unit per milliliter unit which is equal to one unit of an agreed arbitrary amount per one liter. U/l UO:0000179 george gkoutos unit per litre unit.ontology mass per unit volume A concentration unit which is a standard measure of the mass of a substance in a given volume (density). For units and further information look under the mass density unit. For a sample of a specific pure elemental substance, the concentration is directly proportional to the density. However, concentration is not proportional to density in general. UO:0000180 george gkoutos unit.ontology pH A dimensionless concentration notation which denotes the acidity of a solution in terms of activity of hydrogen ions (H+). UO:0000196 george gkoutos unit.ontology liter per kilogram A specific volume unit which is equal to one liter volume occupied by one kilogram of a particular substance. UO:0000197 george gkoutos l/kg litre per kilogram unit.ontology milliliter per kilogram A specific volume unit which is equal to a thousandth of a liter per kilogram or 10^[-3] l/kg. UO:0000198 george gkoutos millilitre per kilogram ml/kg unit.ontology microliter per kilogram A specific volume unit which is equal to one millionth of a liter per kilogram or 10^[-6] l/kg. UO:0000199 george gkoutos microlitre per kilogram ul/kg unit.ontology cell concentration unit A concentration unit which denotes the average cell number in a given volume. UO:0000200 george gkoutos unit.ontology cells per milliliter A unit of cell concentration which is equal to one cell in a volume of 1 milliliter. UO:0000201 cells per millilitre cells per ml george gkoutos unit.ontology catalytic (activity) concentration unit A concentration unit which is a standard measure of the amount of the action of a catalyst in a given volume. UO:0000202 george gkoutos unit.ontology katal per cubic meter A catalytic (activity) concentration unit which is equal to 1 katal activity of a catalyst in a given volume of one cubic meter. UO:0000203 george gkoutos kat/m^[3] katal per cubic metre unit.ontology katal per liter A catalytic (activity) concentration unit which is equal to 1 katal activity of a catalyst in a given volume of one thousandth of a cubic meter. UO:0000204 george gkoutos kat/l katal per litre unit.ontology volume per unit volume A dimensionless concentration unit which denotes the given volume of the solute in the total volume of the resulting solution. UO:0000205 george gkoutos unit.ontology milliliter per cubic meter A volume per unit volume unit which is equal to one millionth of a liter of solute in one cubic meter of solution. UO:0000206 george gkoutos millilitre per cubic metre ml/m^[3] unit.ontology milliliter per liter A volume per unit volume unit which is equal to one millionth of a liter of solute in one liter of solution. UO:0000207 george gkoutos millilitre per litre ml/l unit.ontology deciliter A volume unit which is equal to one tenth of a liter or 10^[-1] L. UO:0000209 decilitre dl george gkoutos unit.ontology colony forming unit per volume A concentration unit which a measure of viable bacterial numbers in a given volume. UO:0000212 george gkoutos unit.ontology colony forming unit per milliliter A colony forming unit which a measure of viable bacterial numbers in one milliliter. UO:0000213 cfu/ml colony forming unit per millilitre george gkoutos unit.ontology plaque forming unit per volume A concentration unit which a measure of plague forming units in a given volume. UO:0000214 george gkoutos unit.ontology plaque forming unit per milliliter A concentration unit which a measure of plague forming units in one milliliter. UO:0000215 george gkoutos pfu/ml plaque forming unit per millilitre unit.ontology dalton An independently to the base SI units defined mass unit which is equal to one twelfth of the mass of an unbound atom of the carbon-12 nuclide, at rest and in its ground state. Da UO:0000221 amu george gkoutos u unified atomic mass unit unit.ontology kilodalton A mass unit which is equal to one thousand daltons. UO:0000222 george gkoutos kDa unit.ontology amount per container A concentration unit which is a standard measure of the amount of a substance in a given container. UO:0000276 george gkoutos unit.ontology ug/disk A unit which is equal to one microgram per disk, where a disk is some physical surface/container upon which the substance is deposited. UO:0000277 george gkoutos unit.ontology nmole/disk A unit which is equal to one nanomole per disk, where a disk is some physical surface/container upon which the substance is deposited. UO:0000278 george gkoutos unit.ontology milliunits per milliliter A unit per milliliter unit which is equal to one thousandth of a unit of an agreed arbitrary amount per one milliliter. UO:0000279 george gkoutos mU/ml milliunits per millilitre unit.ontology yotta 10^[24] 2012-06-13T01:09:16Z A prefix in the metric system denoting a factor of ten to the power of 24. UO:0000286 Y gkoutos unit.ontology hecto 10^[2] 2012-06-13T01:30:59Z A prefix in the metric system denoting a factor of one hundred. UO:0000287 gkoutos h unit.ontology zetta 10^[21] 2012-06-13T01:32:19Z A prefix in the metric system denoting a factor of ten to the power of 21. UO:0000288 Z gkoutos unit.ontology exa 10^[18] 2012-06-13T01:33:26Z A prefix in the metric system denoting a factor of ten to the power of 18. E UO:0000289 gkoutos unit.ontology peta 10^[15] 2012-06-13T01:34:04Z A prefix in the metric system denoting a factor of ten to the power of 15. P UO:0000290 gkoutos unit.ontology tera 10^[12] 2012-06-13T01:34:51Z A prefix in the metric system denoting a factor of ten to the power of 12. T UO:0000291 gkoutos unit.ontology giga 10^[9] 2012-06-13T01:35:28Z A prefix in the metric system denoting a factor of ten to the power of 9. G UO:0000292 gkoutos unit.ontology mega 10^[6] 2012-06-13T01:35:59Z A prefix in the metric system denoting a factor of million. M UO:0000293 gkoutos unit.ontology kilo 10^[3] 2012-06-13T01:36:58Z A prefix in the metric system denoting a factor of one thousand. UO:0000294 gkoutos k unit.ontology deca 10^[1] 2012-06-13T01:38:11Z A prefix in the metric system denoting a factor of ten. UO:0000295 da gkoutos unit.ontology deci 10^[-1] 2012-06-13T01:43:00Z A prefix in the metric system denoting a factor of one tenth. UO:0000296 d gkoutos unit.ontology milli 10^[-3] 2012-06-13T01:44:22Z A prefix in the metric system denoting a factor of one thousand. UO:0000297 gkoutos m unit.ontology centi 10^[-2] 2012-06-13T01:45:30Z A prefix in the metric system denoting a factor of one hundred. UO:0000298 c gkoutos unit.ontology micro 10^[-6] 2012-06-13T01:46:34Z A prefix in the metric system denoting a factor of 10 to the power of -6. UO:0000299 gkoutos unit.ontology nano 10^[-9] 2012-06-13T01:47:23Z A prefix in the metric system denoting a factor of 10 to the power of -9. UO:0000300 gkoutos n unit.ontology pico 10^[-12] 2012-06-13T01:48:04Z A prefix in the metric system denoting a factor of 10 to the power of -12. UO:0000302 gkoutos n unit.ontology femto 10^[-15] 2012-06-13T01:48:57Z A prefix in the metric system denoting a factor of 10 to the power of -15. UO:0000303 f gkoutos unit.ontology atto 10^[-18] 2012-06-13T01:50:09Z A prefix in the metric system denoting a factor of 10 to the power of -18. UO:0000304 a gkoutos unit.ontology zepto 10^[-21] 2012-06-13T01:50:50Z A prefix in the metric system denoting a factor of 10 to the power of -21. UO:0000305 gkoutos unit.ontology z yocto 10^[-24] 2012-06-13T01:51:39Z A prefix in the metric system denoting a factor of 10 to the power of -24. UO:0000306 gkoutos unit.ontology y dose unit 2012-08-24T04:49:51Z A concentration unit which is a standard measure of the amount of a toxic or pharmaceutical substance administered to a recipient subject, expressed in terms of the size of the subject. UO:0000307 gkoutos unit.ontology milligram per kilogram 2012-08-24T04:51:55Z A dose unit which is equal to 1 milligram of a toxic or pharmaceutical substance per kilogram body weight of the recipient subject. UO:0000308 gkoutos unit.ontology milligram per square meter 2012-08-24T04:52:24Z A dose unit which is equal to 1 milligram of a toxic or pharmaceutical substance per square meter of surface area of the recipient subject. UO:0000309 gkoutos unit.ontology dosage unit 2012-08-24T04:52:42Z A concentration unit which is a standard measure of the amount of a toxic or pharmaceutical substance administered over time to a recipient subject, expressed in terms of the size of the subject. UO:0000310 gkoutos unit.ontology milligram per kilogram per day 2012-08-24T05:13:36Z A dosage unit which is equal to 1 milligram per day of a toxic or pharmaceutical substance per kilogram body weight of the recipient subject. UO:0000311 gkoutos unit.ontology cells per microliter 2013-03-12T12:34:17Z A unit of cell concentration which is equal to one cell in a volume of 1 microliter. UO:0000316 cells per microlitre cells per ul gkoutos unit.ontology cells per well 2013-03-12T12:46:20Z A unit of cell concentration which is equal to 1 cell in a well or discrete container of arbitrary volume. UO:0000317 gkoutos unit.ontology radioactivity concentration 2013-03-12T02:40:36Z A concentration unit which is a standard measure of the amount of radioactivity in a given volume. UO:0000319 gkoutos unit.ontology curie per liter 2013-03-12T02:44:56Z A unit of radioactivity concentration which is equal to one curie in a volume of 1 liter. UO:0000320 curie per litre gkoutos unit.ontology microcurie per milliliter 2013-03-12T03:26:04Z A unit of radioactivity concentration which is equal to one micro curie in a volume of 1 liter. UO:0000321 gkoutos microcurie per millilitre unit.ontology square angstrom 2013-06-27T05:06:40Z A^[2] An area unit which is equal to an area enclosed by a square with sides each 1 angstrom long. UO:0000324 gkoutos unit.ontology