cetacean mammal vs blowhole

cetacean mammal and blowhole both are nouns.

Word	Noun	Adjective	Verb	Adverb
cetacean mammal	Yes	No	No	No
blowhole	Yes	No	No	No

cetacean mammal (noun)	blowhole (noun)
large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales, dolphins, porpoises, narwhals	a hole for the escape of gas or air
	the spiracle of a cetacean located far back on the skull