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 (ə-trē′zhə, -zhē-ə)
1. The absence or closure of a normal body orifice or tubular passage such as the anus, intestine, or external ear canal.
2. The degeneration and resorption of one or more ovarian follicles before a state of maturity has been reached.

[New Latin atrēsia : Greek a-, not, without; see a-1 + Greek trēsis, perforation, orifice; see terə- in Indo-European roots.]

a·tre·sic (-zĭk, -sĭk) adj.


(əˈtriːʒɪə; -ʒə)
(Pathology) absence of or unnatural narrowing of a body channel
[C19: New Latin, from Greek atrētos not perforated]


(əˈtri ʒə, -ʒi ə)

the absence, or failure to develop, of a normal body opening or duct, as the ear canal.
[1800–10; < Greek a- a-6 + três(is) perforation + -ia -ia]
a•tre′sic (-zɪk, -sɪk) a•tret•ic (əˈtrɛt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atresia - an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent
abnormalcy, abnormality - an abnormal physical condition resulting from defective genes or developmental deficiencies


n. atresia, cierre congénito anormal de una abertura o conducto del cuerpo.
References in periodicals archive ?
Go cited the cases of two babies with biliary atresia, Eren Arabella Crisologo and Dionifer Zephaniah Itao, who were brought to India for treatment through the help of President Duterte and the senator.
'Sina baby Eren at Dionifer, tinulungan pa namin ng Pangulo na madala sa India para mapagamot ang sakit nilang biliary atresia. Sa kasamaang palad, nagkaroon ng kumplikasyon si baby Eren kaya hindi na-survive ang operasyon,' Go recounted during the meeting.
'While the PEDFIC program moves toward full enrollment, and we plan for potential approval and launch in 2021, we continue to strengthen the body of evidence supporting the potential of odevixibat, and we are preparing to initiate a pivotal study in biliary atresia. At the same time, we are very excited to have initiated an elobixibat Phase 2 trial in NAFLD/NASH, and we believe elobixibat has the potential to find a significant place in the emerging NASH treatment landscape.'
The prenatal diagnostic conclusions were (1) evidence of transposition of the great arteries and (2) suspicion of type I esophageal atresia. Two days later, the pregnant woman was presented to the Shenzhen Maternal and Child Health Hospital for a re-examination and received the same diagnosis as above.
Congenital laryngeal atresia associated with esophageal atresia and tracheoesophageal fstula: a case of longterm survival.
Biliary atresia (BA) is the most common cause of neonatal cholestasis and liver transplantation in childhood and is characterized by the obstruction or discontinuity of intra-and extrahepatic bile ducts, leading to chronic cholestasis, progressive liver damage, fibrosis, and biliary cirrhosis.
Ovarian follicular atresia and postovulatory regression in mammals is mediated by apoptosis, which is a natural occurring cause of cellular death.
Summary: Two-year-old girl suffers from biliary atresia, a rare liver disease
There are a number of diseases that can affect the functionality of the esophagus, the muscular tube that connects the mouth to the stomach, including esophageal atresia, esophageal cancer, and achalasia.
?Es posible que en ovinos tropicales exista una baja estacionalidad con actividad ovarica ciclica reducida, debido a un incremento de atresia folicular estacional, que tiene como consecuencia una menor eficiencia reproductiva?
The spokesperson for Tuen Mun Hospital (TMH) made the following announcement on a baby girl case of biliary atresia:
Oesophageal atresia and tracheo-oesophageal fistula is one of the most challenging surgical problems in neonates.