/ Dictionary / Index W webworm: Meaning and Definition of Find definitions for: web•worm Pronunciation: (web'wûrm"), [key] — n. the larva of any of several moths, as Hyphantria cuneaor Loxostege similaliswhich spins a web over the foliage on which it feeds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: webworm (Thesaurus) web-toed Wechsler Scales Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language