/ Dictionary / Index I invertase: Meaning and Definition of Find definitions for: in•vert•ase Pronunciation: (in-vûr'tās, -tāz), [key] — n. Biochem. an enzyme, occurring in yeast and in the digestive juices of animals, that causes the inversion of cane sugar into invert sugar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: invertase (Thesaurus) invert invertebrate Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language