SI UNIT

Pronunciation (US):

(GB):

 Dictionary entry overview: What does SI unit mean? 

• SI UNIT (noun)
  The noun SI UNIT has 1 sense:

1. a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)

  Familiarity information: SI UNIT used as a noun is very rare.

 Dictionary entry details 

• SI UNIT (noun)

Sense 1

Meaning:

A complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

International System; International System of Units; SI; SI system; SI unit; Systeme International; Systeme International d'Unites

Context example:

Today the United States is the only country in the world not totally committed to the Systeme International d'Unites

Hypernyms ("SI unit" is a kind of...):

metric system (a decimal system of weights and measures based on the meter and the kilogram and the second)

 Context examples 

A SI unit of electric permittivity.

(Farad per Meter, NCI Thesaurus)

The unit is accepted for use with SI units.

(Electronvolt, NCI Thesaurus)

The non-SI unit of mass equal to 1/16 Avoirdupois ounce or 1/256 Avoirdupois pound.

(Dram Mass Unit, NCI Thesaurus)

This is expressed in the SI units milligray x centimeters (mGy x cm).

(Dose Length Product, NCI Thesaurus)

The non-SI unit of volume accepted for use with the SI equal to one quadrillionth of a liter (10E-15 liter).

(Femtoliter, NCI Thesaurus)

In SI units, one gauss equals 10-4 tesla.

(Gauss, NCI Thesaurus)

EXAMPLE(S): A performing lab may have completed the observation or lab test using conventional units, but the sponsor may wish to have the test reported in SI units.

(Performed Clinical Result As Collected Indicator, NCI Thesaurus/BRIDG)

The non-SI unit of mass equal to 24 grains, 1/20 Troy ounce or approximately 1.5552 gram.

(Pennyweight, NCI Thesaurus)

A non-SI unit of pressure equal to 133,332 Pa or 1.316E10-3 standard atmosphere.

(Millimeter of Mercury, NCI Thesaurus)

It is calculated by averaging the radiation dose delivered over x,y and z directions and expressed in the SI unit of Gray (Gy).

(Computed Tomography Dose Index Volume, NCI Thesaurus)