/ Dictionary / Index M mealworm: Meaning and Definition of Find definitions for: meal•worm Pronunciation: (mēl'wûrm"), [key] — n. the larva of any of several darkling beetles of the genus Tenebrio, which infests granaries and is used as food for birds and animals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mealworm (Thesaurus) mealtime mealy Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language