the GNU version of the Collaborative International Dictionary of English
adj. Pertaining to, or employed in, the expiration or emission of air from the lungs.
The Century Dictionary and Cyclopedia
Pertaining to the emission or expiration of breath from the lungs.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to the breathing out phase of respiration
Word Usage
"The Strive study tested the drug in 161 patients with the mutation and showed that a measure of air exhaled, called forced expiratory volume, increased after 24 weeks and 48 weeks in comparison to placebo."