atelectasis

noun
at·​el·​ec·​ta·​sis | \ ˌa-tə-ˈlek-tə-səs How to pronounce atelectasis (audio) \
plural atelectases\ ˌa-​tə-​ˈlek-​tə-​ˌsēz How to pronounce atelectasis (audio) \

Definition of atelectasis

: collapse of the expanded lung also : defective expansion of the pulmonary alveoli at birth

First Known Use of atelectasis

1837, in the meaning defined above

History and Etymology for atelectasis

borrowed from New Latin (in the phrase atelectasis pulmonum "incomplete dilatation of the lungs"), from Greek atelḗs "incomplete, unsuccessful" (from a- a- entry 2 + -telēs, adjective derivative of télos "fulfillment, completion, goal") + New Latin ectasis "expansion of a hollow or tubular organ, dilatation," borrowed from Greek éktasis "stretching out, extension" (action noun from ekteínein "to stretch out, extend"), from ek- ec- + tásis "stretching, tension" — more at telos, tenant entry 1

Note: The term was introduced by the German physician Eduard Jörg in De morbo pulmonum organico ex respiratione neonatorum imperfecta orto (Leipzig, 1832).

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The first known use of atelectasis was in 1837

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atelectasis

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Last Updated

23 Aug 2022

Cite this Entry

“Atelectasis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atelectasis. Accessed 6 Oct. 2022.

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More Definitions for atelectasis

atelectasis

noun
at·​el·​ec·​ta·​sis | \ ˌat-ᵊl-ˈek-tə-səs How to pronounce atelectasis (audio) \
plural atelectases\ -​ˌsēz How to pronounce atelectasis (audio) \

Medical Definition of atelectasis

: collapse of the expanded lung also : defective expansion of the pulmonary alveoli at birth

Other Words from atelectasis

atelectatic \ -​ek-​ˈtat-​ik How to pronounce atelectasis (audio) \ adjective

More from Merriam-Webster on atelectasis

Britannica.com: Encyclopedia article about atelectasis

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