endonuclease vs nuclease

endonuclease and nuclease both are nouns.

Word	Noun	Adjective	Verb	Adverb
endonuclease	Yes	No	No	No
nuclease	Yes	No	No	No

As nouns, nuclease is a hypernym of endonuclease; that is, nuclease is a word with a broader meaning than endonuclease:

endonuclease: a nuclease that cleaves nucleic acids at interior bonds and so produces fragments of various sizes
nuclease: general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units

endonuclease (noun)	nuclease (noun)
a nuclease that cleaves nucleic acids at interior bonds and so produces fragments of various sizes	general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units