
1) Abnormal condition 2) Abnormalcy 3) Abnormality 4) Medical terminology
Found on
https://www.crosswordclues.com/clue/atresia

Atresia is a condition in which a body orifice or passage in the body is abnormally closed or absent. Examples of atresia include: ...
Found on
http://en.wikipedia.org/wiki/Atresia

absence or irregular closure of a passage in the body
Found on
http://phrontistery.info/a.html

• (n.) Absence or closure of a natural passage or channel of the body; imperforation.
Found on
http://thinkexist.com/dictionary/meaning/atresia/

(ә-tre´zhә) congenital absence or closure of a normal body opening or tubular structure; see also obstruction. adj., atret´ic., adj. atresia ani imperforate anus. atresia folliculi follicular atresia.
Found on
http://www.encyclo.co.uk/local/21001

Degeneration and resorption of a follicle before it reaches maturity and ruptures.
Found on
http://www.encyclo.co.uk/local/21429
A·tre'si·a noun [ New Latin , from Greek ... not perforated.]
(Medicine) Absence or closure of a natural passage or channel of the body; imperforation.
Found on
http://www.encyclo.co.uk/webster/A/140

Type: Term Pronunciation: ă-trē′zē-ă Definitions: 1. Congenital absence of a normal opening or normally patent lumen. Synonyms: clausura
Found on
http://www.medilexicon.com/medicaldictionary.php?t=8350

Atresia: Absence of a normal opening or failure of a structure to be tubular. Atresia can affect many structures in the body, including: Anal atresia -- congenital absence of a hole at the bottom end of the intestine. Also called imperforate anus. Aortic atresia -- congenital absence of the normal valvular opening into the aorta. Biliary atresia --...
Found on
http://www.medterms.com/script/main/art.asp?articlekey=2381

Absence of a body opening or canal resulting from failure of development during fetal development. The condition is seen on the newborn at birth. The majority are properly corrected by early surgical interventions. Narrower term(s): Aural Atresia Anal Atresia Biliary Atresia Cervical Atresia Duodenal Atresia Esophageal Atresia Pulmonary Atresi...
Found on
http://www.pregnology.com/

Congenital absence or occlusion of an orifice or tubular organ.
Found on
http://www.thehorse.com/Glossary.xhtml?L=A

[
n] - an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent
Found on
http://www.webdictionary.co.uk/definition.php?query=atresia

Absence or abnormal narrowing of a body opening, e.g. duodenal atresia, the narrowing of part of the small intestine that consequently causes an obstruction.
Found on
https://www.arc-uk.org/tests-explained/glossary-of-terms

a birth defect in which a normal body opening or canal is absent; usually requires surgical repair soon after birth
Found on
https://www.encyclo.co.uk/local/20875
noun an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent
Found on
https://www.encyclo.co.uk/local/20974

Greek a = negative, and tresis = a hole, hence an absence or closure of a body orifice or tubular organ
Found on
https://www.encyclo.co.uk/local/21450

Regressing or shrinking in size
Found on
https://www.encyclo.co.uk/local/22445

the congenital absence, or the pathological closure, of an opening, passage, or cavity.
Found on
https://www.infoplease.com/dictionary/atresia

inadequate development of an organ or part of an organ during pregnancy.
Found on
https://www.stanfordchildrens.org/en/topic/default?id=glossary---cardiovasc

lack of a normal opening, from the esophagus, the intestines, or the anus.
Found on
https://www.stanfordchildrens.org/en/topic/default?id=glossary---digestive-
No exact match found.