obstetrical toad vs batrachian

obstetrical toad and batrachian both are nouns.

Word	Noun	Adjective	Verb	Adverb
obstetrical toad	Yes	No	No	No
batrachian	Yes	Yes	No	No

As nouns, batrachian is a hypernym of obstetrical toad; that is, batrachian is a word with a broader meaning than obstetrical toad:

obstetrical toad: European toad whose male carries the fertilized eggs wrapped around its hind legs until they hatch
batrachian: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of obstetrical toad include anuran, frog, salientian, toad, toad frog.

obstetrical toad (noun)	batrachian (noun)
European toad whose male carries the fertilized eggs wrapped around its hind legs until they hatch	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

obstetrical toad (adjective)	batrachian (adjective)
	relating to frogs and toads