octahedron
US /ˌɑːk.təˈhiː.drən/
UK /ˌɒk.təˈhiː.drən/
名詞
八面體
a three-dimensional geometric shape with eight plane faces, especially a regular one with equilateral triangular faces
範例:
•
A regular octahedron has eight triangular faces and six vertices.
正八面體有八個三角形面和六個頂點。
•
The crystal grew in the shape of a perfect octahedron.
晶體長成了完美的八面體形狀。