Breadcrumb Home > Dictionary > Index B blow fly: Meaning and Definition of Find definitions for: blow' fly" Pronunciation: [key] any of numerous dipterous insects of the family Calliphoridae that deposit their eggs or larvae on carrion, excrement, etc., or in wounds of living animals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blowfly (Thesaurus) blowfish blowgun ✖ Related Content Daily Word Quiz: quadrumanous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language