class Actinozoa vs actinozoan

class Actinozoa and actinozoan both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Actinozoa	Yes	No	No	No
actinozoan	Yes	No	No	No

class Actinozoa (noun)	actinozoan (noun)
a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed	sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed