decidua
de·cid·u·anoun
pl. -·ae or -·as a mucous membrane lining the uterus during pregnancy, cast off at childbirth
Origin of decidua
Modern Latin (membrana) decidua, deciduous (membrane), origin, originally feminine of Classical Latin deciduus: see deciduousdecidua
noun
pl. de·cid·u·as, or de·cid·u·aeA mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation.
Origin of decidua
New Latin (membrāna) dēcidua (membrane) that falls off from Latin dēciduus falling off ; see deciduous .Related Forms:
- de·cid′u·al
adjective
decidua
Noun
(plural deciduas or deciduae)
- (anatomy) A mucous membrane that lines the uterus and is shed during menstruation and modified during pregnancy
