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Webster 1913 Edition
Implacental
Imˊpla-cen′tal
,Adj.
(Zool.)
Without a placenta, as marsupials and monotremes; nonplacental.
– Noun.
A mammal having no placenta; a nonplacental mammal.
Definition 2024
implacental
implacental
English
Adjective
implacental (not comparable)
- (zoology) Without a placenta, as marsupials and monotremes.
Noun
implacental (plural implacentals)