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Definition of Lung, collapsed

Lung, collapsed: Failure of full expansion of a once fully expanded lung. Medically called atelectasis. The word comes from the Greek "a-" (without) "telos" (complete) + "rectasis" (expansion) = without complete expansion.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=6470
Last Editorial Review: 8/28/2013

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