International System of Units
noun phrase
: a system of units based on the metric system and developed and refined by international convention especially for scientific work
—abbreviation SI
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Under the International System of Units, which is based on the metric system that the rest of the world uses, a pascal (Pa) is the standard unit of pressure; a pascal is the pressure that the force of one newton puts perpendicularly onto an area of one square meter.
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Matt Crisara, Popular Mechanics, 14 June 2023
In addition to keeping the national time, NIST helps maintain the International System of Units—meters, kilograms, and the like.
—Tom Vanderbilt, Harper's Magazine, 13 Mar. 2023
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Matt Crisara, Popular Mechanics, 14 June 2023
In addition to keeping the national time, NIST helps maintain the International System of Units—meters, kilograms, and the like.
—Tom Vanderbilt, Harper's Magazine, 13 Mar. 2023
Dictionary Entries Near International System of Units
International System of Units
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“International System of Units.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/International%20System%20of%20Units. Accessed 25 Nov. 2024.
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International System of Units
noun
In·ter·na·tion·al System of Units
ˌint-ər-ˈnash-nəl-, -ənᵊl- 
: an internationally accepted system of units based on the metric system and having the meter, kilogram, second, ampere, kelvin, mole, and candela as base units, the radian and steradian as supplementary units, and deriving all other units from these
—abbreviation SI
called also International System
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