tetrahedron
🇺🇸
/ˌtetrəˈhiːdrən/
🇬🇧
/ˌtetrəˈhiːdrən/
A three-dimensional shape with four triangular faces.
The artist crafted a stunning glass tetrahedron for the exhibition.
艺术家为展览制作了一个惊艳的玻璃四面体。