WordReference Random House Unabridged Dictionary of American English © 2026
phos•pho•ryl•ase
(fos′fər ə lās′, -lāz′, fos fôr′ə-, -for′-),USA pronunciation n. [Biochem.]
- Biochemistryany enzyme, occurring widely in animal and plant tissue, that in the presence of an inorganic phosphate catalyzes the conversion of glycogen into sugar phosphate.
- phosphor- + -yl + -ase 1935–40