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单词 ulnar
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ul•na  (ulnə),USA pronunciation n., pl. -nae (-nē),USA pronunciation -nas. 
  1. Anatomythe bone of the forearm on the side opposite to the thumb. Cf. radius (def. 7). See diag. under skeleton. 
  2. Zoologya corresponding bone in the forelimb of other vertebrates.
  • Latin: elbow; akin to Greek ōlénē, Old English eln ell2
  • 1835–45
ulnar, adj. 

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