atresia

noun atre·sia \ə-ˈtrē-zhə\

Definition of ATRESIA

: absence or closure of a natural passage of the body

: absence or disappearance of an anatomical part (as an ovarian follicle) by degeneration

New Latin, from ²a- + Greek trēsis perforation, from tetrainein to pierce — more at throw

First Known Use: circa 1807

Medical Dictionary

noun atre·sia \ə-ˈtrē-zhə\

: absence or closure of a natural passage of the body <atresia of the small intestine>

: absence or disappearance of an anatomical part (as an ovarian follicle) by degeneration

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