Wiktionary
myophosphorylase
n. (context biochemistry English) The muscle isoform of the enzyme glycogen phosphorylase.
Wikipedia
Myophosphorylase
Myophosphorylase is the muscle isoform of the enzyme glycogen phosphorylase. This enzyme helps break down glycogen (a form of stored carbohydrate) into glucose-1-phosphate (not glucose), so that it can be utilized within the muscle cell.