emphysema: Meaning and Definition of
Pronunciation: (em"fu-sē'mu, -zē'-), [key]
— n. Pathol.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
- a chronic, irreversible disease of the lungs characterized by abnormal enlargement of air spaces in the lungs accompanied by destruction of the tissue lining the walls of the air spaces.
- any abnormal distention of an organ, or part of the body, with air or other gas.