appendage vs appendicle

appendage and appendicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
appendage	Yes	No	No	No
appendicle	Yes	No	No	No

As nouns, appendicle is a hyponym of appendage; that is, appendicle is a word with a more specific, narrower meaning than appendage:

Other hyponyms of appendage include handhold, grip, handgrip, handle, hold, tailpiece.

appendage (noun)	appendicle (noun)
a part that is joined to something larger	a small appendage
an external body part that projects from the body
a natural prolongation or projection from a part of an organism either animal or plant