triggerfish vs plectognath

triggerfish and plectognath both are nouns.

Word	Noun	Adjective	Verb	Adverb
triggerfish	Yes	No	No	No
plectognath	Yes	No	No	No

As nouns, plectognath is a hypernym of triggerfish; that is, plectognath is a word with a broader meaning than triggerfish:

triggerfish: any of numerous compressed deep-bodied tropical fishes with sandpapery skin and erectile spines in the first dorsal fin
plectognath: tropical marine fishes having the teeth fused into a beak and thick skin covered with bony plates or spines

Other hypernyms of triggerfish include plectognath fish.

triggerfish (noun)	plectognath (noun)
any of numerous compressed deep-bodied tropical fishes with sandpapery skin and erectile spines in the first dorsal fin	tropical marine fishes having the teeth fused into a beak and thick skin covered with bony plates or spines