American Heritage® Dictionary of the English Language, Fourth Edition
- n. Anatomy See ball-and-socket joint.
Century Dictionary and Cyclopedia
- n. In anatomy, a ball-and-socket joint; a kind of movable arthrosis or free articulation which consists in the socketing of a convex end of a bone in a concavity of another bone, forming a joint freely movable in every direction. The hip and shoulder are characteristic examples. Also enarthrodia.
- n. anatomy A ball-and-socket joint.
GNU Webster's 1913
- n. (Anat.) A ball and socket joint, or the kind of articulation represented by such a joint. See articulation.
- n. a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
- Greek enarthrōsis, from enarthros, jointed : en-, in; see en-2 + arthron, joint; see ar- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The bony surfaces would of themselves constitute an enarthrosis and allow of movement in all directions, were it not for the annular ligament, by which the head of the radius is bound to the radial notch of the ulna, and which prevents any separation of the two bones laterally.”
“The incudostapedial joint is an enarthrosis, surrounded by an articular capsule; some observers have described an articular disk or meniscus in this joint; others regard the joint as a syndesmosis.”
“There is one form where the movement is polyaxial, the enarthrosis or ball-and-socket joint; and finally there are the arthrodia or gliding joints.”
These user-created lists contain the word ‘enarthrosis’.
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
a list of words from the indo european root ar- and variations : to fit together
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