Definify.com
Webster 1913 Edition
Placental
Pla-cen′tal
,Adj.
1.
Of or pertaining to the placenta; having, or characterized by having, a placenta;
as, a
. placental
mammal2.
(Zool.)
Of or pertaining to the Placentalia.
Pla-cen′tal
,Noun.
(Zool.)
One of the Placentalia.
Webster 1828 Edition
Placental
PLACEN'TAL
,Adj.