ball-and-socket joint


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Related to ball-and-socket joint: Spheroidal joint

ball-and-sock·et joint

(bôl′ən-sŏk′ĭt)
n.
1. A synovial joint, such as the shoulder or hip joint, in which a spherical knob or knoblike part of one bone fits into a cavity or socket of another, so that some degree of rotary motion is possible in every direction. Also called enarthrosis.
2. A joint, as in a mechanical device, that permits rotary movement in all directions through the movement of a ball in a socket. Also called ball joint.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ball-and-socket joint

or

ball joint

n
1. (Mechanical Engineering) a coupling between two rods, tubes, etc, that consists of a spherical part fitting into a spherical socket, allowing free movement within a specific conical volume
2. (Anatomy) anatomy Also called: multiaxial joint a bony joint, such as the hip joint, in which a rounded head fits into a rounded cavity, allowing a wide range of movement
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ball′-and-sock′et joint`


n.
1. Also called enarthrosis. an anatomical joint in which the rounded end of one bone fits into a cuplike end of the other bone, as at the hip or shoulder.
2. Also called ball joint. a similar mechanical joint used to connect rods, pipes, etc.
[1660–70]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ball-and-socket joint - a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other boneball-and-socket joint - a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
articulatio synovialis, diarthrosis, synovial joint - a joint so articulated as to move freely
articulatio humeri, shoulder joint, shoulder - a ball-and-socket joint between the head of the humerus and a cavity of the scapula
articulatio coxae, coxa, hip joint, hip - the ball-and-socket joint between the head of the femur and the acetabulum
2.ball-and-socket joint - a joint that can rotate within a socketball-and-socket joint - a joint that can rotate within a socket
joint - junction by which parts or objects are joined together
socket - receptacle where something (a pipe or probe or end of a bone) is inserted
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

ball-and-socket joint

nKugelgelenk nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
BALL-AND-SOCKET JOINT This type of joint allows the widest range of movement - backwards or forwards, sideways and rotation.
Parsons notes that the shoulder is a ball-and-socket joint, and as such it has a wide range of motion.