rhinoscope
  照鼻鏡
  rhi·no·scope /ˈraɪnəˌskop/ 名詞
  Rhi·no·scope n.  A small mirror for use in rhinoscopy.
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  rhinoscope
       n : medical instrument consisting of a mirror mounted at an
           angle on a rod; used to examine the nasal passages
           (through the nasopharynx)