cherimoya vs custard apple tree

cherimoya and custard apple tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
cherimoya	Yes	No	No	No
custard apple tree	Yes	No	No	No

As nouns, custard apple tree is a hypernym of cherimoya; that is, custard apple tree is a word with a broader meaning than cherimoya:

cherimoya: small tropical American tree bearing round or oblong fruit
custard apple tree: any of several tropical American trees bearing fruit with soft edible pulp

Other hypernyms of cherimoya include custard apple.

cherimoya (noun)	custard apple tree (noun)
large tropical fruit with leathery skin and soft pulp; related to custard apples	any of several tropical American trees bearing fruit with soft edible pulp
small tropical American tree bearing round or oblong fruit