noun, plural de·cid·u·as, de·cid·u·ae [dih-sij-oo-ee] /dɪˈsɪdʒ uˌi/. Embryology.
Origin of decidua
Related formsde·cid·u·al, adjective
Examples from the Web for decidua
These latter never possess a decidua, whereas Elephants and Hyrax are genuine Deciduata.The History of Creation, Vol. II (of 2)|Ernst Haeckel
At its edge it is continuous both with the decidua reflexa and decidua vera.
The outer one of these is the inner lining of the womb itself, known as the decidua vera.What a Young Husband Ought to Know|Sylvanus Stall
The decidua reflexa and serotina together envelop the chorion, the processes of which fit into crypts in them.
The decidua reflexa, on the disappearance of the vessels in the chorion lve, becomes non-vascular.