|—n , pl -ciduas, -ciduae|
|the specialized mucous membrane that lines the uterus of some mammals during pregnancy: is shed, with the placenta, at parturition|
|[C18: from New Latin, from Latin dēciduus falling down; see |
|a scrap or morsel of food left at a meal.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
decidua de·cid·u·a (dĭ-sĭj'&oomacr;-ə)
n. pl. de·cid·u·as or de·cid·u·ae (-&oomacr;-ē')
A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation. Also called deciduous membrane.