Meaning of phosphorylase

phos•pho•ryl•ase

Pronunciation: (fos'fur-u-lās", -lāz", fos-fôr'u-, -for'-), [key]
— n. Biochem.
  1. any enzyme, occurring widely in animal and plant tissue, that in the presence of an inorganic phosphate catalyzes the conversion of glycogen into sugar phosphate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.