uterine sinus


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u·ter·ine si·nus

a small irregular vascular channel in the endometrium, of a type that forms during pregnancy.
Synonym(s): uterine sinusoid

u·ter·ine si·nus

(yū'tĕr-in sī'nŭs)
A small, irregular vascular channel in the endometrium, of a type that forms during pregnancy.