ball-and-socket joint vs socket

ball-and-socket joint and socket both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball-and-socket joint	Yes	No	No	No
socket	Yes	No	No	No

ball-and-socket joint (noun)	socket (noun)
a joint that can rotate within a socket	a receptacle into which an electric device can be inserted
a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone	receptacle where something (a pipe or probe or end of a bone) is inserted
	a bony hollow into which a structure fits