Système International d'Unités


Also found in: Dictionary, Thesaurus, Medical, Acronyms.
Related to Système International d'Unités: SI units, International System of Units

International System of Units

International System of Units, officially called the Système International d'Unités, or SI, system of units adopted by the 11th General Conference on Weights and Measures (1960). It is based on the metric system. The basic units of length, mass, and time are those of the mks system of metric units: the meter, kilogram, and second. Other basic units are the ampere of electric current, the kelvin of temperature (a degree of temperature measured on the Kelvin temperature scale), the candela, or candle, of luminous intensity, and the mole, used to measure the amount of a substance present. All other units are derived from these basic units.

Bibliography

See U.S. National Bureau of Standards, Spec. Pub. 330, International System of Units (1971).

The Columbia Electronic Encyclopedia™ Copyright © 2022, Columbia University Press. Licensed from Columbia University Press. All rights reserved.

Système International d'Unités

[si′stem ‚in·tər‚näs·ē·ə′näl dyu̇n·i′tāz]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Full browser ?