Definition of Nostril
Nostril: One of the openings in the nose that allows air to flow in and out of the nasal cavities. The word nostril comes from the Old English nosu, nose + thyrel, hole = the nose hole.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=25481
Last Editorial Review: 11/30/2003
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