/ Dictionary / Index K kinase: Meaning and Definition of Find definitions for: ki•nase Pronunciation: (kī'nās, -nāz, kin'ās, -āz), [key] — n. Biochem. a transferase that catalyzes the phosphorylation of a substrate by ATP. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: kinase (Thesaurus) kinaesthesia Kincaid Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language