noun
- the mucous membrane lining the uterus that is shed during menstruation and forms the maternal part of the placenta during pregnancy
Usage: medical
Examples
- The decidua provides nutrients to the developing embryo.
- During pregnancy, the decidua undergoes significant changes.
- The doctor explained how the decidua forms part of the placental structure.
- Abnormalities in the decidua can affect pregnancy outcomes.
- The decidua is shed along with the placenta after childbirth.