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]