aplacental


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Related to aplacental: ovoviviparous, viviparous

aplacental

 [a″plah-sen´t'l]
having no placenta.

a·pla·cen·tal

(ā'pla-sen'tăl),
Without a placenta; denoting the monotremes (which lay eggs and have no placenta) and the marsupials (which have a transitory simple yolk-sac placenta).

aplacental

(ā′plə-sĕn′tl)
adj.
Having no placenta, as marsupials and monotremes.

aplacental

having no placenta.
References in periodicals archive ?
Morphological and endocrine correlates of the reproductive cycle of the aplacental viviparous dogfish, Squalus acanthias.