scorpaenoid fish vs scorpaenoid

scorpaenoid fish and scorpaenoid both are nouns.

Word	Noun	Adjective	Verb	Adverb
scorpaenoid fish	Yes	No	No	No
scorpaenoid	Yes	No	No	No

As nouns, scorpaenoid fish and scorpaenoid are synonyms defined as:

scorpaenoid fish and scorpaenoid: fishes having the head armored with bony plates

scorpaenoid fish (noun)	scorpaenoid (noun)
fishes having the head armored with bony plates	fishes having the head armored with bony plates