atelectasis

play
noun at·el·ec·ta·sis \ ˌa-tə-ˈlek-tə-səs \

Definition of atelectasis

plural atelectases play \-ˌsēz\
:collapse of the expanded lung; also :defective expansion of the pulmonary alveoli at birth

Origin and Etymology of atelectasis

New Latin, from Greek atelēs incomplete, defective (from a- 2a- + telos end) + ektasis extension, from ekteinein to stretch out, from ex- + teinein to stretch — more at telos, thin


Medical Dictionary

atelectasis

play
noun at·el·ec·ta·sis \ ˌat-ᵊl-ˈek-tə-səs \

medical Definition of atelectasis

plural atelectases play \-ˌsēz\
:collapse of the expanded lung; also :defective expansion of the pulmonary alveoli at birth

atelectatic

play \-ek-ˈtat-ik\ adjective

Learn More about atelectasis


Seen and Heard

What made you want to look up atelectasis? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

agreeable, attractive, or delicious

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!