re·nal /ˈrɪnḷ/ 形容詞
  腎臟的
  Re·nal a.  Anat. Of or pertaining to the kidneys; in the region of the kidneys.
  Renal capsules or  Renal glands, the suprarenal capsules. See under Capsule.
  Renal casts, Renal colic. Med. See under Cast, and Colic.
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  renal
       adj : of or relating to the kidneys [syn: nephritic]