/ Dictionary / Index T tachina fly: Meaning and Definition of Find definitions for: tach'i•na fly" Pronunciation: (tak'u-nu), [key] any of numerous dipterous insects of the family Tachinidae, the larvae of which are parasitic on caterpillars, beetles, and other insects. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tache Ta Ch'ing Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language