foot

7 ENTRIES FOUND:

foot

In measurement, any of numerous lineal measures (commonly 9.8–13.4 in. [25–34 cm]) based on the length of the human foot. It is used exclusively in English-speaking countries. In most countries and in all scientific applications, the foot (with its multiples and subdivisions) has been superseded by the metre. In the U.S. the definition of the foot as exactly 30.48 cm took effect in 1959. See also inch; International System of Units; yard.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on foot, visit Britannica.com.

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