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

  • noun A hinged joint in which a pin fastens the ends of two rods, one of which has an eye that fits between the two perforated projections of the other.

from The Century Dictionary.

  • noun An anatomical joint forming a knuckle, as one of the joints of the fingers; in a whale, the shoulder-joint.
  • noun In mech., any flexible joint formed by two abutting links.

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

  • noun a joint of a finger when the fist is closed
  • noun a joint allowing movement in one plane only


Sorry, no etymologies found.


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  • A joint allowing movement in one plane only.

    February 12, 2008