/ Dictionary / Index L lipase: Meaning and Definition of Find definitions for: li•pase Pronunciation: (lī'pās, lip'ās), [key] — n. Biochem. any of a class of enzymes that break down fats, produced by the liver, pancreas, and other digestive organs or by certain plants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lipase (Thesaurus) Lipari Islands Lipchitz Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language