/ Dictionary / Index G glassworm: Meaning and Definition of Find definitions for: glass•worm Pronunciation: (glas'wûrm", gläs'-), [key] — n. arrowworm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. glassworks glasswort Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language