pentahedron

名词 pentahedron:

1. any polyhedron having five plane faces

pen.ta.he.dron

n.（名词）
【复数】 pen.ta.he.drons 或 pen.ta.he.dra [-dr…]
A solid having five plane faces.
五面体：有五个平面的固体

【引伸】
pen.tahe.dral