Definitions for ball-and-socket joint
Random House Webster's College Dictionary
Ref: Also called enarthrosis.
Category: Anatomy, Machinery
Ref: Also called ball joint.
Origin of ball-and-socket joint:
ball-and-socket joint, spheroid joint, cotyloid joint, enarthrodial joint, enarthrosis, articulatio spheroidea(noun)
a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
a joint that can rotate within a socket
A joint in which one segment has a rounded end and the next segment has a bowl-shaped end, with the rounded end being fitted into the bowl shape, allowing the first segment to move around an indefinite number of axes which have one common center.
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