/ Dictionary / Index W walnut husk fly: Meaning and Definition of Find definitions for: wal'nut husk' fly" Pronunciation: [key] any of several fruit flies, as Rhagoletis completa, the larvae of which feed on and discolor walnut husks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. walnut family Walpole Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language