/ Dictionary / Index L lugworm: Meaning and Definition of Find definitions for: lug•worm Pronunciation: (lug'wûrm"), [key] — n. any burrowing annelid of the genus Arenicola, of ocean shores, having tufted gills: used as bait for fishing. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lugworm (Thesaurus) lugubrious lug wrench Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language