atresia

play
noun atre·sia \ə-ˈtrē-zhə\

Definition of atresia

  1. 1 :  absence or closure of a natural passage of the body

  2. 2 :  absence or disappearance of an anatomical part (such as an ovarian follicle) by degeneration

Recent Examples of atresia from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'atresia'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of atresia

New Latin, from 2a- + Greek trēsis perforation, from tetrainein to pierce — more at 1throw


Medical Dictionary

atresia

play
noun atre·sia \ə-ˈtrē-zhə\

Medical Definition of atresia

  1. 1:  absence or closure of a natural passage of the body atresia of the small intestine

  2. 2:  absence or disappearance of an anatomical part (as an ovarian follicle) by degeneration


Learn More about atresia


Seen and Heard

What made you want to look up atresia? 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

to become worse as time passes

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

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!