Nostril /(?)/

Nos·tril

Nostril

n.
  1. 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. (Anat.)
  2. Perception; insight; acuteness. [Obs.]
    Methinks a man Of your sagacity and clear nostril should Have made another choice.