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Medical Dictionary

decidua

play
noun de·cid·ua \di-ˈsij-ə-wə\

Medical Definition of decidua

plural deciduae \-ˌwē\play

  1. 1:  the part of the mucous membrane lining the uterus that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition, being made up in the human of a part lining the uterus (see decidua parietalis), a part enveloping the embryo; (see decidua capsularis), and a part participating with the chorion in the formation of the placenta; (see decidua basalis)

  2. 2:  the part of the mucous membrane of the uterus cast off in the ordinary process of menstruation

decidual \-ə-wəl\play adjective



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