imperforation


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im·per·fo·ra·tion

(im-per'fō-rā'shŭn),
Condition of being atretic, occluded, or closed; indicated in compound words by the prefix atreto- or the suffix -atresia.
[L. im- neg. + per-foro, pp. -atus, to bore through]

im·per·fo·ra·tion

(im'pĕr-fŏr-ā'shŭn)
Condition of being atretic, occluded, or closed.
[L. im- neg. + per-foro, pp. -atus, to bore through]