atresia

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Related to atresic: atresia, antiemetic, atretic

atresia

[ə′trē·zhə]
(medicine)
Imperforation or closure of a natural orifice or passage of the body.
References in periodicals archive ?
1) Atresic volume fraction (AVF): the number of grid points occupied by AO divided by the total number of grid points occupied by all oocyte types.
4) Minimum atresic impact (MAI): the minimum impact of atresia on the oocyte population, expressed as
The number of oocytes increased during July to August 2005, with another marked reduction in September 2005, followed by gradual reduction until only atresic oocytes remained until December 2005.
In females, small groups of oogonias, previtelogenic oocytes at different phases of maturity anchored on the follicular wall, some vitelogenic pedunculated or free oocytes in follicular lumen and atresic oocytes are observed (Figs.