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

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of International System of Units was in 1932

Dictionary Entries Near International System of Units

Cite this Entry

“International System of Units.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/International%20System%20of%20Units. Accessed 26 Nov. 2022.

Kids Definition

International System of Units

noun

: a system of units based on the metric system and used by international agreement especially for scientific work

Medical Definition

International System of Units

noun

In·​ter·​na·​tion·​al System of Units ˌint-ər-ˈnash-nəl-, -ənᵊl- How to pronounce International System of Units (audio)
: 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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