| Definitions | | metre |
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noun
- The basic unit of length in the International System of Units (SI: Système International d'Unités). It is defined as the length of the path travelled by light in a vacuum during a time interval of 1/299,792,458 of a second. It is equal to (frac, 39, 47, 127) (approximately 39.37) imperial system, imperial inches.
- Spelling: This, rather than meter, is the spelling adopted by the International Bureau of Weights and Measures for use in its publications.
- Symbol: m
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