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postnasal

[pohst-ney-zuh l]
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adjective
  1. located or occurring behind the nose or in the nasopharynx, as a flow of mucus; nasopharyngeal: a postnasal infection.
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Origin of postnasal

First recorded in 1895–1900; post- + nasal1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

postnasal in Medicine

postnasal

(pōst-nāzəl)
adj.
  1. Located or occurring posterior to the nose or the nasal cavity.
  2. Relating to the posterior portion of the nasal cavity.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.