Definitions for atelectasisˌæt lˈɛk tə sɪs

This page provides all possible meanings and translations of the word atelectasis

Random House Webster's College Dictionary

at•e•lec•ta•sisˌæt lˈɛk tə sɪs(n.)

  1. incomplete expansion of the lungs at birth, as from lack of breathing force.

    Category: Pathology

  2. collapse of the lungs, as from bronchial obstruction.

    Category: Pathology

Origin of atelectasis:

1855–60; < Gk atel(ḗs) incomplete ( a- a-6+ -telēs, adj. der. of télos end, completion) +éktasis extension

at•e•lec•tat•icˌæt l ɛkˈtæt ɪk(adj.)

Princeton's WordNet

  1. atelectasis(noun)

    collapse of an expanded lung (especially in infants); also failure of pulmonary alveoli to expand at birth


  1. atelectasis(Noun)

    The collapse of a part of or the whole lung caused by inner factors rather than a pneumothorax.

  2. Origin: From Greek ἀτελής 'incomplete' + ἔκτασις 'extension', from ἔκτείνειν 'extend', from ἐξ 'out' + τείνειν 'stretch'.


  1. Atelectasis

    Atelectasis is defined as the collapse or closure of the lung resulting in reduced or absent gas exchange . It may affect part or all of one lung. It is a condition where the alveoli are deflated, as distinct from pulmonary consolidation. It is a very common finding in chest x-rays and other radiological studies. It may be caused by normal exhalation or by several medical conditions. Although frequently described as a collapse of lung tissue, atelectasis is not synonymous with a pneumothorax, which is a more specific condition that features atelectasis. Acute atelectasis may occur as a post-operative complication or as a result of surfactant deficiency. In premature neonates, this leads to infant respiratory distress syndrome.


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