proteinase vs peptidase

proteinase and peptidase both are nouns.

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

As nouns, proteinase and peptidase are synonyms defined as:

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

Other synonyms of proteinase include protease, proteolytic enzyme.

proteinase (noun)	peptidase (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