[ kuh n-jes-chuh n ]
/ kənˈdʒɛs tʃən /


overcrowding; clogging: severe traffic congestion.
an excessive or abnormal accumulation of blood or other fluid in a body part or blood vessel: pulmonary congestion.

Origin of congestion

From the Latin word congestiō, dating back to 1585–95. See congest, -ion

Related forms

non·con·ges·tion, nounpre·con·ges·tion, nounsu·per·con·ges·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for congestion

British Dictionary definitions for congestion


/ (kənˈdʒɛstʃən) /


the state of being overcrowded, esp with with traffic or people
the state of being overloaded or clogged with blood
the state of being blocked with mucus

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for congestion


[ kən-jĕschən ]


The presence of an abnormal amount of fluid in a vessel or organ; especially excessive accumulation of blood, due either to increased afflux or to obstruction of return flow.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.