Which combining form indicates "lung" or "air"?

The combining form that indicates "lung" or "air" is pneumon/o. This terminological root comes from the Greek word "pneumon," which directly translates to "lung." It's commonly used in medical terminology related to respiratory conditions, such as pneumonia (inflammation of the lungs) and pneumothorax (air in the pleural space). The focus on respiration and air as it relates to lung function is central to the applications of this combining form in various medical contexts.

Phren/o relates to the diaphragm, which is a muscle that plays a crucial role in breathing but does not specifically indicate "lung" or "air." Pleura refers to the membranes surrounding the lungs, rather than the lungs themselves. Physic/o is more related to nature or natural treatments rather than directly conveying lung or air-related meanings. Each of these other combining forms serves distinct purposes in medical vocabulary, but pneumon/o is the specific term tied to lungs and air.