/ Dictionary / Index T toad bug: Meaning and Definition of Find definitions for: toad' bug" Pronunciation: [key] any of several small broad aquatic insect-eating hemipterous insects of the family Gelastocoridae, having toadlike characteristics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. toad toadeater Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language