any hydrolase enzyme, as pepsin or trypsin, that acts as a catalyst in chemical reactions in which a protein is broken down by hydrolysis
Origin of proteaseprote(in) + (diast)ase
Any of various enzymes, including the endopeptidases and exopeptidases, that catalyze the hydrolytic breakdown of proteins. Also called peptidase .
From prote(in) + -ase.