Emphysema Definition

ĕmfĭ-sēmə, -zē-
An abnormal swelling of bodily tissues caused by the accumulation of air; esp., such a swelling of the lung tissue, due to the destruction or permanent loss of elasticity of the alveoli, which seriously impairs respiration.
Webster's New World
An abnormal distension of body tissues caused by retention of air.
American Heritage Medicine
Webster's New World
Emphysema is defined as a medical condition where there is air in body tissues or where the air sacs in the lungs are damaged in a way that causes shortness of breath.
A medical condition caused by years of smoking that damages the air sacs in your lungs and makes breathing hard is an example of emphysema.

Origin of Emphysema

  • Greek emphūsēma inflation from emphūsān to blow in en- in en–2 phūsān to blow (from phūsa bellows, bladder)

    From American Heritage Dictionary of the English Language, 5th Edition

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