nostril

nostril is a   Noun

Definition:

[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.

[2] Perception; insight; acuteness. [Obs.] Methinks a man Of your sagacity and clear nostril should Have made another choice. B. Jonson.

Synonyms: