WORD ORIGIN noun . Medicine/Medical the congenital absence, or the pathological closure, of an opening, passage, or cavity. Origin of atresia 1800–10;
Greek a- a- 6
) perforation +
-ia -ia Related forms a·tre·sic , [ uh- tree-zik, -sik] /əˈtri zɪk, -sɪk/ a·tret·ic , [ uh- tret-ik] /əˈtrɛt ɪk/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for atretic noun absence of or unnatural narrowing of a body channel Word Origin for atresia
C19: New Latin, from Greek
atrētos not perforated
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for atretic n.
"occlusion of a natural passage in the body," 1807, from Modern Latin
atresia, from Greek atretos "not perforated," from a-, privative prefix, + tresis "perforation," from PIE *tere- "to rub, turn," with derivatives referring to boring and drilling (see throw (v.)).
Online Etymology Dictionary, © 2010 Douglas Harper
atresia [ə-trē ′zhə, -zhē-ə] n. The congenital absence or closure of a normal body orifice or tubular passage such as the anus, intestine, or external ear canal. The degeneration and resorption of one or more ovarian follicles before maturation.
The American Heritage® Stedman's Medical Dictionary
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