Pronunciation: (kil'ē-fish"), [key]
—pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
1. any of several small, oviparous cyprinodont fishes, esp. of the genus Fundulus, found in salt, brackish, and fresh waters.
2. any of several livebearers. Cf. least killifish.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.