APLACENTAL
Meaning of APLACENTAL in English
/ay'pleuh sen"tl, ap'leuh-/ , adj. Zool.
having or forming no placenta, as the marsupials and monotremes.
[ 1855-60; A- 6 + PLACENTAL ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012