un·ci·form /ˈʌn(t)səˌfɔrm/
  (a.)鉤狀的,鉤狀骨的鉤狀骨
  un·ci·form /ˈən(t)səˌfɔrm/ 形容詞
  鉤狀的
  Un·ci·form a.  Having the shape of a hook; being of a curved or hooked form; hooklike.
  Unciform bone Anat., a bone of the carpus at the bases of the fourth and fifth metacarpals; the hamatum.
  Un·ci·form, n. Anat. The unciform bone. See Illust. of Perissodactyla.
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