tr.v., -gest·ed, -gest·ing, -gests.
To relieve the congestion of (sinuses, for example).
decongestion de'con·ges'tion (-jĕs'chən) n.
decongestive de'con·ges'tive adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
