1. The sound heard in auscultation resembling the hollow sound made by blowing across the mouth of a large, narrow-necked, empty bottle; for example: "Amphoric breathing indicates a cavity in the lung."
2. Produced by, or indicating, a cavity in the lungs, not filled, and giving a sound like that produced by blowing into an empty bottle; as, "amphoric respiration or resonance.
3. In design engineering, having the shape of an amphora, or a similar tapering, narrow-necked shape.

A peculiar hollow, blowing, resonant breathing sound that is heard over the lung cavities (abnormal spaces in the lung area or in parts of a lung).