• (a.) Possessed of, or characterized by, a decidua.
(dә-sid´u-āt) characterized by shedding.
De·cid'u·ate adjective (Anat.) Possessed of, or characterized by, a decidua. 
Type: Term Pronunciation: dē-sid′yū-āt Definitions: 1. Relating to those mammals (humans, dogs, rodents) that shed maternal uterine tissue when expelling the placenta at birth, in contrast to indeciduate mammals (horse, pig).
having or characterized by a decidua. · (of a placenta) partly formed from the decidua. · deciduous (def. 2).