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atelectasis Line breaks: atel|ec¦tasis
Pronunciation: /ˌatɪˈlɛktəsɪs/

Definition of atelectasis in English:


[mass noun] Medicine
Partial collapse or incomplete inflation of the lung.
Example sentences
  • Indications for postoperative mechanical ventilation are respiratory acidosis, severe hypoxemia, atelectasis, and pneumonia.
  • This edema leads to hyperinflation and atelectasis of the lungs, and wheezing.
  • The tumor or its effects, atelectasis or pneumonia, are usually evident on the chest radiograph.


Mid 19th century: from Greek atelēs 'imperfect' + ektasis 'extension'.

Definition of atelectasis in:
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