located or occurring behind the nose or in the nasopharynx, as a flow of mucus; nasopharyngeal: a postnasal infection.
Origin of postnasal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Located or occurring posterior to the nose or the nasal cavity.
Relating to the posterior portion of the nasal cavity.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.