/ Dictionary / Index L long-horned beetle: Meaning and Definition of Find definitions for: long'-horned bee'tle Pronunciation: (lông'hôrnd", long'-), [key] any of numerous, often brightly colored beetles of the family Cerambycidae, usually with long antennae, the larva of which bores into the wood of living or decaying trees. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. long horn long-horned grasshopper Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language