acetabulum vs socket

acetabulum and socket both are nouns.

Word	Noun	Adjective	Verb	Adverb
acetabulum	Yes	No	No	No
socket	Yes	No	No	No

As nouns, socket is a hypernym of acetabulum; that is, socket is a word with a broader meaning than acetabulum:

acetabulum: the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint
socket: a bony hollow into which a structure fits

acetabulum (noun)	socket (noun)
the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint	a receptacle into which an electric device can be inserted
	receptacle where something (a pipe or probe or end of a bone) is inserted
	a bony hollow into which a structure fits