Emphysema

[,emfɪ'siːmə] or ['ɛmfɪ'simə]

(noun.) an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age.

Checker: Quincy--From WordNet

(n.) A swelling produced by gas or air diffused in the cellular tissue.

Checked by Desmond

n. (med.) an unnatural distention of a part with air.—adj. Emphysem′atous.

Checker: Thelma