Bible Dictionaries
Implacental

Webster's Dictionary

(1):

(a.) Without a placenta, as marsupials and monotremes.

(2):

(n.) A mammal having no placenta.

Bibliography Information
Webster, Noah. Entry for 'Implacental'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/implacental.html. 1828.