tetrahedron
🇺🇸
/ˌtetrəˈhiːdrən/
🇬🇧
/ˌtetrəˈhiːdrən/
A three-dimensional shape with four triangular faces.
The artist crafted a stunning glass tetrahedron for the exhibition.
藝術家為展覽製作了一個驚艷的玻璃四面體。