Also found in: Wikipedia.
pul·mon·ar·y a·gent(pul'mŏ-nār-ē ā'jĕnt)
A toxic chemical-warfare agent that affects the respiratory tract, especially the respiratory bronchioles, alveolar ducts, and alveoli. These agents, such as phosgene (CG), can lead to shortness of breath and pulmonary edema.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012