Breadcrumb Home > Dictionary > Index B butterfly bomb: Meaning and Definition of Find definitions for: but'terfly bomb" Pronunciation: [key] a small, aerial, antipersonnel bomb with two folding wings that revolve, slowing the rate of descent and arming the fuze. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. butterfly butterfly bush ✖ Related Content Daily Word Quiz: umbrage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language