/ Dictionary / Index L lipoma: Meaning and Definition of Find definitions for: li•po•ma Pronunciation: (li-pō'mu, lī-), [key] — pl. -mas, -ma•ta a benign tumor consisting of fat tissue. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lipoma (Thesaurus) lipolysis lipopexia 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