One of the mysteries of the English language finally explained.
Absence or abnormal narrowing of an opening or passage in the body.
- ‘Cheryl was diagnosed with pulmonary atresia as a baby, and underwent two heart operations when she was six-months-old and five.’
- ‘An X-ray revealed she had a condition called trachea oesophageal fistula and atresia, where the oesophagus and windpipe have not split properly.’
- ‘Mary has pulmonary atresia, a condition that means the heart and the main blood vessel to the lungs have failed to develop properly.’
- ‘The Foundation is of vital importance to Sarah and her family because her youngest daughter, Carol, was diagnosed last year with a rare liver disease called biliary atresia.’
- ‘The main objective of our study was to identify chromosomal regions possibly containing putative disease loci involved in the etiology of anal atresia.’
The degeneration of those ovarian follicles which do not ovulate during the menstrual cycle.
- ‘Furthermore, they may cause premature depletion of the follicle pool by induction of follicular atresia or oocyte apoptosis and, thereby, lead to reduced fertility.’
- ‘This results in atresia of the dominant follicle and re-initiation of follicular recruitment.’
- ‘The process by which follicles degenerate and disappear is little understood and is termed follicular atresia.’
- ‘These structures form through a process of follicular atresia accompanied by hypertrophy of the follicular cells.’
- ‘Mammalian females have a fixed number of oocytes at birth, which decreases dramatically with advancing age due to follicular atresia.’
Early 19th century: from a- ‘without’ + Greek trēsis ‘perforation’ + -ia.
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