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emphysema (n.)

1660s, "distention with air or other gasses," from Modern Latin, from Greek emphysema "swelling, inflation" (of the bowels, etc.), from emphysan "to blow in, inflate; to play the flute," from assimilated form of en "in" (see en- (2)) + physan "to blow," from physa "breath, blast" (see pustule). Related: Emphysematous (adj.).

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Definitions of emphysema

emphysema (n.)
an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age;
Synonyms: pulmonary emphysema
From wordnet.princeton.edu