EMPHYSEMA
emphysema, pulmonary emphysema
(noun) an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age
Source: WordNet® 3.1
Etymology
Noun
emphysema (plural emphysemas or emphysemata)
(pathology) An abnormal accumulation of air or other gas in tissues, most commonly the lungs.
(medicine) Pulmonary emphysema, a chronic lung disease, one type of chronic obstructive pulmonary disease.
Synonyms
• (abnormal accumulation of air in tissues): pneumatosis
Source: Wiktionary
Em`phy*se"ma, n. Etym: [NL., from Gr. emphysème.] (Med.)
Definition: A swelling produced by gas or air diffused in the cellular
tissue. Emphysema of the lungs, Pulmonary emphysema (Med.), a common
disease of the lungs in which the air cells are distended and their
partition walls ruptured by an abnormal pressure of the air contained
in them.
Source: Webster’s Unabridged Dictionary 1913 Edition