/ Dictionary / Index L lobus: Meaning and Definition of Find definitions for: lo•bus Pronunciation: (lō'bus), [key] — pl. -bi a lobe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lobulus lobworm Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language