aplacental / ˌeɪ pləˈsɛn tl, ˌæp lə- /

🎓大学词汇胎盘胎记胎盘式胎盘癌

aplacental 的定义

adj. 形容词 adjective

Zoology.

  1. having or forming no placenta, as the marsupials and monotremes.