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atelectasis

[at-l-ek-tuh-sis] Origin

at·e·lec·ta·sis

[at-l-ek-tuh-sis]
noun Pathology.
1.
incomplete expansion of the lungs at birth, as from lack of breathing force.
2.
collapse of the lungs, as from bronchial obstruction.

Origin:
1855–60; < Neo-Latin; see ateliosis, ectasis

at·e·lec·tat·ic [at-l-ek-tat-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Atelectasis has a plethora of syllables.
So is antidisestablishmentarianism. Does it mean:
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
opposition to the withdrawal of state support or recognition from an established church, esp. the Anglican Church in 19th-century England.
Collins
World English Dictionary
atelectasis (ˌætəˈlɛktəsɪs)
 
n
1.  failure of the lungs to expand fully at birth
2.  collapse of the lung or a part of the lung, usually caused by bronchial obstruction
 
[C19: New Latin, from Greek atelēs imperfect + ektasis extension]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

atelectasis
"incomplete expansion of the lungs," 1859, medical L., from Gk. ateles "imperfect, incomplete," lit. "without an end," (from a-, privative prefix, + telos "completion") + ektosis "extention."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

atelectasis at·e·lec·ta·sis (āt'l-ěk'tə-sĭs)
n.

  1. The absence of gas from all or a part of the lungs, due to failure of expansion or resorption of gas from the alveoli.

  2. A congenital condition characterized by the incomplete expansion of the lungs at birth.


at'e·lec·tat'ic (-ěk-tāt'ĭk) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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