ulna Hear it!

ulna definition

ulna (ul′nə)

noun pl. ulnae -·nae (-nē) or ulnas -·nas

  1. the larger of the two bones of the forearm of humans, on the side opposite the thumb
  2. a corresponding bone in the forelimb of other land vertebrates

Etymology: ModL < L, elbow: for IE base see ell

Related Forms:

  • ulnad ul′·nad (-nad) adverb
  • ulnar ul′·nar (-nər) adjective

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