Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, permitting rotating movement, as in the proximal articulation between the radius and ulna.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a freely moving joint in which movement is limited to rotation

Etymologies

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Examples

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