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[kil-ee-fish] /ˈkɪl iˌfɪʃ/
noun, plural (especially collectively) killifish (especially referring to two or more kinds or species) killifishes.
any of several small, oviparous cyprinodont fishes, especially of the genus Fundulus, found in salt, brackish, and fresh waters.
any of several livebearers.
Also called killie [kil-ee] /ˈkɪl i/ (Show IPA).
Compare least killifish.
Origin of killifish
1805-15, Americanism; perhaps kill2 + -i- (unexplained) + fish Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for killifish


noun (pl) -fish, -fishes
any of various chiefly American minnow-like cyprinodont fishes of the genus Fundulus and related genera, of fresh and brackish waters: used as aquarium fishes, to control mosquitoes, and as anglers' bait
Word Origin
C19: see kill², fish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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