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

  • noun Any of several types of bone articulation permitting free motion in a joint, as that of the shoulder or hip.

from The Century Dictionary.

  • noun In anatomy, that articulation of bones which leaves them free to move in some or any direction; free, as distinguished from fixed, arthrosis; thorough-joint: applied both to the joints themselves and to the motion resulting from such mechanism.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) A form of articulation which admits of considerable motion; a complete joint; abarticulation. See articulation.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy A joint that can move freely in various planes

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

  • noun a joint so articulated as to move freely


from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek diarthrōsis, from diarthroun, to articulate : dia-, between; see dia– + arthroun, to fasten by a joint (from arthron, joint; see ar- in Indo-European roots).]


  • In a considerable part of their extent, especially in advanced life, they are separated by a space containing a synovia-like fluid, and hence the joint presents the characteristics of a diarthrosis.

    III. Syndesmology. 5i. Articulations of the Pelvis

  • —The incudomalleolar joint is a saddle-shaped diarthrosis; it is surrounded by an articular capsule, and the joint cavity is incompletely divided into two by a wedge-shaped articular disk or meniscus.

    X. The Organs of the Senses and the Common Integument. 1d. 3. The Auditory Ossicles

  • Although coracoclavicular diarthrosis is of no significance other than academic, it is important to recognize this variation and the clinical symptoms that may occur, as it is a cause of shoulder pain and arthritis in this or the adjacent sternoclavicular and acromioclavicular joint.

    BioMed Central - Latest articles


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  • weed does not allow verbal diarthrosis

    May 16, 2009