difficult or painful breathing except in an erect sitting or standing position.
- or·thop·ne·ic, or·thop·noe·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use orthopnea in a sentence
orthopnea, pain, and excessive oppression at the bottom of the sternum.An Account of the Foxglove and some of its Medical Uses | William Withering