The definition of a kilometer is a unit of measurement equal to 1,000 meters or .6214 miles.(noun)
An example of a kilometer is how far a person will run if she wants to run for just over 1/2 of a mile.
See kilometer in Webster's New World College Dictionary
Origin: Fr kilomètre: see kilo- & meter
See kilometer in American Heritage Dictionary 4
noun Abbr. km
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