ball-and-socket joint

noun
Updated on: 14 Nov 2017

Definition of ball-and-socket joint

1 : a joint in which a ball moves within a socket so as to allow rotary motion in every direction within certain limits
2 : an articulation (such as the hip joint) in which the rounded head of one bone fits into a cuplike cavity of the other and admits movement in any direction

Recent Examples of ball-and-socket joint from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ball-and-socket joint.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of ball-and-socket joint

First Known Use of ball-and-socket joint

1779


BALL-AND-SOCKET JOINT Defined for Kids

ball-and-socket joint

noun

Definition of ball-and-socket joint for Students

: a joint (as in the shoulder) in which a rounded part can move in many directions in a socket

Medical Dictionary

ball-and-socket joint

noun

medical Definition of ball-and-socket joint

: an articulation (as the hip joint) in which the rounded head of one bone fits into a cuplike cavity of the other and admits movement in any direction called also enarthrosis

Illustration of ball-and-socket joint


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