placenta
意味
- 胎盤
語源
英語の原文（Wiktionary）
Learned borrowing from New Latin placenta (literally “flat cake”), an ellipsis of phrases such as placenta uterī (literally “womb cake”) and placenta uterīna (literally “uterine cake”), because of the flat round shape of the afterbirth. Doublet of palacsinta and palatschinke.