cecal appendage vs outgrowth

cecal appendage and outgrowth both are nouns.

Word	Noun	Adjective	Verb	Adverb
cecal appendage	Yes	No	No	No
outgrowth	Yes	No	No	No

As nouns, outgrowth is a hypernym of cecal appendage; that is, outgrowth is a word with a broader meaning than cecal appendage:

cecal appendage: a vestigial process that extends from the lower end of the cecum and that resembles a small pouch
outgrowth: a natural prolongation or projection from a part of an organism either animal or plant

Other hypernyms of cecal appendage include appendage, process.

cecal appendage (noun)	outgrowth (noun)
a vestigial process that extends from the lower end of the cecum and that resembles a small pouch	a natural prolongation or projection from a part of an organism either animal or plant
	the gradual beginning or coming forth
	a natural consequence of development