angler vs acanthopterygian

angler and acanthopterygian both are nouns.

Word	Noun	Adjective	Verb	Adverb
angler	Yes	No	No	No
acanthopterygian	Yes	No	No	No

As nouns, acanthopterygian is a hypernym of angler; that is, acanthopterygian is a word with a broader meaning than angler:

angler: fishes having large mouths with a wormlike filament attached for luring prey
acanthopterygian: a teleost fish with fins that are supported by sharp inflexible rays

Other hypernyms of angler include spiny-finned fish.

angler (noun)	acanthopterygian (noun)
fishes having large mouths with a wormlike filament attached for luring prey	a teleost fish with fins that are supported by sharp inflexible rays
a fisherman who uses a hook and line
a scheming person; someone who schemes to gain an advantage