butterfish vs stromateid fish

butterfish and stromateid fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
butterfish	Yes	No	No	No
stromateid fish	Yes	No	No	No

As nouns, butterfish and stromateid fish are synonyms defined as:

butterfish and stromateid fish: small marine fish with a short compressed body and feeble spines

Other synonyms of butterfish include stromateid.

butterfish (noun)	stromateid fish (noun)
small marine fish with a short compressed body and feeble spines	small marine fish with a short compressed body and feeble spines
slippery scaleless food fish of the northern Atlantic coastal waters
any of numerous small flat Atlantic food fish having smooth skin