| kilo- [KIL oh or KEEL oh], kil- (Greek: one thousand; a decimal prefix used in the international metric system for measurements).In the metric [decimal] system, kilo- denotes a whole unit of a thousand [U.S.] and thousandfold [U.K.], 103 [1 000]. It's metric symbol is k.kilo-ohm: kiloampere: kilobaud: kilobit: kilobytes: kilocalorie: kilocurie: kilocycle: kilodyne: kilogram: kilogrammeter: kilohertz: kilohm: kiloliter: kilomegacycle: kilometer: kiloparsec: kilopascal: kilorad: kiloroentgen: kilosecond: kiloton: kilounit: kilovolt: kilowatt: kilurane: |