lungless salamander vs plethodont

lungless salamander and plethodont both are nouns.

Word	Noun	Adjective	Verb	Adverb
lungless salamander	Yes	No	No	No
plethodont	Yes	No	No	No

As nouns, lungless salamander and plethodont are synonyms defined as:

lungless salamander and plethodont: mostly terrestrial salamanders that breathe through their thin moist skin; lay eggs in moist places on land; rarely enter water

lungless salamander (noun)	plethodont (noun)
mostly terrestrial salamanders that breathe through their thin moist skin; lay eggs in moist places on land; rarely enter water	mostly terrestrial salamanders that breathe through their thin moist skin; lay eggs in moist places on land; rarely enter water