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atresia

American  
[uh-tree-zhuh, -zhee-uh] / əˈtri ʒə, -ʒi ə /

noun

Medicine/Medical.
  1. the congenital absence, or the pathological closure, of an opening, passage, or cavity.


atresia British  
/ -ʒə, əˈtriːʒɪə /

noun

  1. absence of or unnatural narrowing of a body channel

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of atresia

1800–10; < New Latin < Greek a- a- 6 + três ( is ) perforation + -ia -ia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She said Reggie was born with a number of health complications, including oesophageal atresia and skeletal dysplasia, meaning he will have to have both legs amputated.

From BBC • Sep. 27, 2025

Within weeks he was diagnosed with biliary atresia, a blockage in the ducts that carry bile from the liver to the gallbladder, a rare form of liver disease only seen in infants.

From Los Angeles Times • May 4, 2022

Cecilia had been suffering since birth with biliary atresia.

From Seattle Times • Jun. 18, 2021

And my little girl got diagnosed with biliary atresia and we spent 93 days on the liver transplant waiting list.

From Washington Post • Jun. 19, 2020

Follicular atresia is never great enough to account for the destruction of all large follicles remaining after ovulation.

From Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz by Legler, John M.

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