archenteron vs cavity

archenteron and cavity both are nouns.

Word	Noun	Adjective	Verb	Adverb
archenteron	Yes	No	No	No
cavity	Yes	No	No	No

As nouns, cavity is a hypernym of archenteron; that is, cavity is a word with a broader meaning than archenteron:

archenteron: central cavity of the gastrula; becomes the intestinal or digestive cavity
cavity: (anatomy) a natural hollow or sinus within the body

Other hypernyms of archenteron include bodily cavity, cavum.

archenteron (noun)	cavity (noun)
central cavity of the gastrula; becomes the intestinal or digestive cavity	(anatomy) a natural hollow or sinus within the body
	a sizeable hole (usually in the ground)
	soft decayed area in a tooth; progressive decay can lead to the death of a tooth
	space that is surrounded by something