名詞 pericardium:

1. a serous membrane with two layers that surrounds the heart

per.i.car.di.um

n.（名詞）
【復(fù)數(shù)】 per.i.car.di.a[-dô-…]
The membranous sac filled with serous fluid that encloses the heart and the roots of the aorta and other large blood vessels.
心包：囊狀膜層，其間充滿了包圍著繞心臟、大血管的根部和其它大血管的漿狀液體

來(lái)源：
New Latin
現(xiàn)代拉丁語(yǔ)
from Greek perikardion
源自 希臘語(yǔ) perikardion
from perikardios [around the heart]
源自 perikardios [圍繞心臟]
peri- [peri-]
peri- [前綴，表示.周圍.]
kardia [heart] * see kerd-
kardia [心臟] *參見(jiàn) kerd-

【引伸】
per.icar.dial