/ Dictionary / Index H horsehead: Meaning and Definition of Find definitions for: horse•head Pronunciation: (hôrs'hed"), [key] — pl. -heads, -head. moonfish (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: horsehead (Thesaurus) horsehair worm Horsehead Nebula Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language