- the endometrium of a pregnant uterus that in many of the higher mammals is cast off at parturition.
Origin of decidua
1775–85; < New Latin, noun use of feminine of Latin dēciduus falling; see deciduous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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 deciduous
- A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation.deciduous membrane