atresia

a·tre·sia  (-trzh, -zh-)

n.

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.

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[New Latin atrsia : Greek a-, not, without; see a-¹ + Greek trsis, perforation, orifice; see ter-¹ in Indo-European roots.]

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a·tre·sic (-zk, -sk) adj.

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atresia [əˈtriːʒɪə -ʒə]

n

(Medicine / Pathology) absence of or unnatural narrowing of a body channel

[New Latin, from Greek atrētos not perforated]

Thesaurus

Noun

1.

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