or·thop·ne·a

[awr-thop-nee-uh, awr-thop-nee-uh, -thuhp-]
noun Pathology.
difficult or painful breathing except in an erect sitting or standing position.
Also, or·thop·noe·a.


Origin:
1650–60; < Greek orthópnoia, equivalent to orthópno(os) breathing upright (ortho- ortho- + pno() breath + -os adj. suffix) + -ia -ia

or·thop·ne·ic, or·thop·noe·ic, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To orthopnea
American Heritage
Medical Dictionary

orthopnea or·thop·ne·a (ôr'thŏp-nē'ə, ôr-thŏp'nē-ə)
n.
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.
Cite This Source
00:10
Orthopnea is always a great word to know.
So is ninnyhammer. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a fool or simpleton; ninny.
Example sentences
Unlike orthopnea, symptoms are not relieved by sitting up.
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