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Meaning of METRE

Pronunciation:  'meetur

WordNet Dictionary
[n]  the basic unit of length adopted under the System International d'Unites (approximately 1.094 yards)

METRE is a 5 letter word that starts with M.


 Synonyms: m, meter
 See Also: dam, decameter, decametre, decimeter, decimetre, dekameter, dekametre, dkm, dm, metric linear unit



Webster's 1913 Dictionary
\Me"tre\, n.
See {Meter}.

Computing Dictionary

(US "meter") The fundamental si unit of length.

From 1889 to 1960, the metre was defined to be the distance between two scratches in a platinum-iridium bar kept in the vault beside the Standard Kilogram at the International Bureau of Weights and Measures near Paris.

This replaced an earlier definition as 10^-7 times the distance between the North Pole and the Equator along a meridian through Paris; unfortunately, this had been based on an inexact value of the circumference of the Earth.

From 1960 to 1984 it was defined to be 1650763.73 wavelengths of the orange-red line of krypton-86 propagating in a vacuum.

It is now defined as the length of the path traveled by light in a vacuum in the time interval of 1/299,792,458 of a second.