/ Dictionary / Index H hexokinase: Meaning and Definition of Find definitions for: hex•o•ki•nase Pronunciation: (hek"su-kī'nās, -nāz), [key] — n. Biochem. an enzyme that catalyzes the phosphorylation of hexose sugars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexavalent hexone Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language