appendage vs dactyl

appendage and dactyl both are nouns.

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

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

appendage: an external body part that projects from the body
dactyl: a finger or toe in human beings or corresponding body part in other vertebrates

Other hyponyms of appendage include chelicera, mouthpart, fang, chela, claw, nipper, pincer, parapodium, fin, pleopod, swimmeret, limb, digit.

appendage (noun)	dactyl (noun)
a part that is joined to something larger	a finger or toe in human beings or corresponding body part in other vertebrates
an external body part that projects from the body	a metrical unit with stressed-unstressed-unstressed syllables
a natural prolongation or projection from a part of an organism either animal or plant