Source : Webster's Revised Unabridged Dictionary (1913)

Kilometer \Kil"o*me`ter\, Kilometre \Kil"o*me`tre\, n. [F.
   kilometre. See {Kilogram}, and {Meter}.]
   A measure of length, being a thousand meters. It is equal to
   3,280.8 feet, or 62137 of a mile.

Source : WordNet®

kilometer
     n : a metric unit of length equal to 1000 meters (or 0.621371
         miles) [syn: {kilometre}, {km}, {klick}]