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nostril definition

nos·tril (näs′trəl)

noun

  1. either of the external openings of the nose
  2. the fleshy wall on either side of the nose with flaring nostrils

Etymology: ME nosethirl < OE nosthyrl < nos, for nosu, the nose + thyrel, a hole < thurh, through: see nose & through

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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