/ Dictionary / Index L lobule: Meaning and Definition of Find definitions for: lob•ule Pronunciation: (lob'yl), [key] — n. a small lobe. a subdivision of a lobe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lobule (Thesaurus) lobulate lobulus Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language