Meter

Define:

A meter is a unit of length that equals 100 centimeters, 1000 millimeteres, 10 decimeters, and .001 kilometers. In 1983, the modern meter was defined by the distance light travels in 1 / 299,792,458 of 1 second.

Base or derived

m

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Sources:

http://physics.nist.gov/cuu/Units/meter.html

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