International System
Americannoun
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The English name for Système International [d'Unites], a decimal system of units used mainly in scientific work, in which the basic quantities are length, mass, time, electric current, temperature, amount of matter, and luminous intensity. In addition, the International System uses two supplementary units to measure plane angles and solid angles.
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See Table at measurement
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The customary units we use legally are defined in terms of the International System of Units units.
From Washington Post • Nov. 30, 2018
In the International System, the SI unit of speed is the metre per second.
From New York Times • Sep. 22, 2016
As the National Nanotechnology Initiative explains, “In the International System of Units, the prefix ‘nano’ means one-billionth, or 10-9; therefore one nanometer is one-billionth of a meter.”
From Slate • Sep. 6, 2016
The kilogram is the last physical unit in the International System of Units defined by a physical artifact, a platinum-iridium cylinder kept by the International Bureau of Weights and Measures in Sèvres, France.
From Science Magazine • Jan. 11, 2013
Here the International System of Uniform Lessons had its birth.
From Training the Teacher by Schauffler, A. F.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
