peptidase vs protease

peptidase and protease both are nouns.

Word	Noun	Adjective	Verb	Adverb
peptidase	Yes	No	No	No
protease	Yes	No	No	No

As nouns, peptidase and protease are synonyms defined as:

peptidase and protease: any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis

Other synonyms of peptidase include proteinase, proteolytic enzyme.

peptidase (noun)	protease (noun)
any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis	any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis