World English Dictionary
capitellum (ˌkæpɪˈtɛləm)
n , pl -la
anatomy an enlarged knoblike structure at the end of a bone that forms an articulation with another bone; capitulum
[C19: from Latin, diminutive of capitulum]

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American Heritage
Medical Dictionary

capitellum cap·i·tel·lum (kāp'ĭ-těl'əm)
n. pl. cap·i·tel·la (-těl'ə)

  1. Capitulum.

  2. The rounded protuberance at the lower end of the humerus that articulates with the radius.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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