/ Dictionary / Index C cow killer: Meaning and Definition of Find definitions for: cow' kil"ler Pronunciation: [key] the wingless female of any of several velvet ants, esp. Dasymutilla occidentalis, of the southern U.S., which inflicts a painful sting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cowitch cowl Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language