Meaning of atelectasis in English:


Pronunciation /ˌatɪˈlɛktəsɪs/


mass nounMedicine
  • Partial collapse or incomplete inflation of the lung.

    ‘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.’
    • ‘We plan to reduce his ventilation setting further, although previous attempts in taking him off night ventilation have resulted in retained secretions, atelectasis, and pneumonia.’
    • ‘Hypoxemia, for example, has significant clinical implications, yet hypoxemia in itself is not a diagnosis but a component of other diagnoses such as atelectasis or pneumonia.’


Mid 19th century from Greek atelēs ‘imperfect’ + ektasis ‘extension’.