- the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.
Origin of decidua
Examples from the Web for decidua
Historical Examples of decidua
Folds of this nature, which are specially developed in Man and Apes, are known as a decidua reflexa.
The decidua reflexa of the Rat is reduced to extreme tenuity, or even vanishes before the close of gestation.
The decidua reflexa and serotina together envelop the chorion, the processes of which fit into crypts in them.
The chorion frondosum, together with the decidua serotina, gives rise to the placenta.
This ovum, though probably not more than thirteen days old, was completely enclosed by a decidua reflexa.
- the specialized mucous membrane that lines the uterus of some mammals during pregnancy: is shed, with the placenta, at parturition
Word Origin for decidua
- A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation.deciduous membrane