caspase vs protease

caspase and protease both are nouns.

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

As nouns, protease is a hypernym of caspase; that is, protease is a word with a broader meaning than caspase:

caspase: any of a group of proteases that mediate apoptosis
protease: any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis

Other hypernyms of caspase include peptidase, proteinase, proteolytic enzyme.

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