hydrogenase in English dictionary hydrogenase Meanings and definitions of "hydrogenase" (biochemistry) Any enzyme that catalyzes the formation of hydrogen, or the reversible oxidation of hydrogen. noun (biochemistry) Any enzyme that catalyzes the formation of hydrogen, or the reversible oxidation of hydrogen. more Grammar and declension of hydrogenase hydrogenase ( plural hydrogenases) more Sample sentences with "hydrogenase" Declension Stem Try again Available translations French German Italian Tamil Telugu Authors