/ Dictionary / Index H hydrobomb: Meaning and Definition of Find definitions for: hy•dro•bomb Pronunciation: (hī'dru-bom"), [key] — n. an aerial torpedo equipped with a rocket engine that propels it after the torpedo has entered the water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hydrobiology hydrobromic Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language