Definitions

1. noun

a congenital or acquired abnormal closure of a bodily passage or orifice, such as the bile ducts or the anal canal, leading to a blockage of the flow of a bodily secretion or excretion.

“The baby was born with a severe case of esophageal atresia, which required immediate medical attention.”

2. noun

a condition in which a bodily passage or orifice is abnormally narrowed or blocked, such as a bile duct or a blood vessel.

“The patient had to undergo surgery to relieve the atresia of the bile duct, which was causing jaundice and abdominal pain.”