a·tre·sia ( -tr  zh, -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. [New Latin atr sia : Greek a-, not, without; see a-1 + Greek trsis, perforation, orifice; see ter-1 in Indo-European roots.]a·tre·sic (-z  k, -sk) adj. |
atresia [əˈtriːʒɪə -ʒə]
n
(Medicine / Pathology) absence of or unnatural narrowing of a body channel
[New Latin, from Greek atrētos not perforated]
ThesaurusLegend: Synonyms Related Words Antonyms
| 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 |
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