actiniarian vs anemone

actiniarian and anemone both are nouns.

Word	Noun	Adjective	Verb	Adverb
actiniarian	Yes	No	No	No
anemone	Yes	No	No	No

As nouns, anemone is a hypernym of actiniarian; that is, anemone is a word with a broader meaning than actiniarian:

actiniarian: any sea anemone or related animal
anemone: marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton

Other hypernyms of actiniarian include sea anemone.

actiniarian (noun)	anemone (noun)
any sea anemone or related animal	marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton
	any woodland plant of the genus Anemone grown for its beautiful flowers and whorls of dissected leaves