[awr-thop-nee-uh, awr-thop-nee-uh, -thuh p-]
difficult or painful breathing except in an erect sitting or standing position.
Origin of orthopnea
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Relating to or suffering from orthopnea.
Discomfort in breathing that is relieved by sitting or standing in an erect position.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.