nos·tril /ˈnɑstrəl/
  鼻孔
  nos·tril /ˈnɑstrəl/ 名詞
  鼻孔(動)
  Nos·tril n.
  1. Anat. One of the external openings of the nose, which give passage to the air breathed and to secretions from the nose and eyes; one of the anterior nares.
  Note: ☞ In sperm whales, porpoises, and allied animals, there is only one nostril, which is situated on the top of the head and called a spiracle.
  2. Perception; insight; acuteness. [Obs.]
  Methinks a man
  Of your sagacity and clear nostril should
  Have made another choice.   --B. Jonson.
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  nostril
       n : either one of the two external openings to the nasal cavity
           in the nose [syn: anterior naris]