[ dee-kuh n-jest ]
/ ˌdi kənˈdʒɛst /

verb (used with object)

to diminish or end the congestion of.

Origin of decongest

1955–60; de- + congest, or by back formation from decongestant

Related forms

de·con·ges·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for decongest


[ dē′kən-jĕst ]


To relieve congestion, such as of the sinuses.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.