GNU Collaborative International Dictionary of English

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1.       
   osteoclast , n. [Osteo- + Gr. κλᾶν to break.]
   (Physiol.) Same as myeloplax, a large multinucleate cell within the bone, which functions in the absroption and removal of bone tissue.
   1913 Webster
   +PJC
   ☞ The osteoclasts occur usually in pits or cavities which they appear to have excavated, and are supposed to be concerned in the absorption of the bone matrix.
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   An instrument for performing osteoclasis.
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