scorpionfish vs scorpaenid

scorpionfish and scorpaenid both are nouns.

Word	Noun	Adjective	Verb	Adverb
scorpionfish	Yes	No	No	No
scorpaenid	Yes	No	No	No

As nouns, scorpaenid is a hypernym of scorpionfish; that is, scorpaenid is a word with a broader meaning than scorpionfish:

scorpionfish: marine fishes having a tapering body with an armored head and venomous spines
scorpaenid: any of numerous carnivorous usually bottom-dwelling warm-water marine fishes found worldwide but most abundant in the Pacific

Other hypernyms of scorpionfish include scorpaenid fish.

scorpionfish (noun)	scorpaenid (noun)
marine fishes having a tapering body with an armored head and venomous spines	any of numerous carnivorous usually bottom-dwelling warm-water marine fishes found worldwide but most abundant in the Pacific