/ Dictionary / Index I inchworm: Meaning and Definition of Find definitions for: inch•worm Pronunciation: (inch'wûrm"), [key] — n. measuringworm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inchworm (Thesaurus) inch-pound incidence Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language