Breadcrumb Home > Dictionary > Index L lobworm: Meaning and Definition of Find definitions for: lob•worm Pronunciation: (lob'wûrm"), [key] — n. the lugworm. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lobworm (Thesaurus) lobus loc. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language