Meaning of the word octahedron in English

What does octahedron mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

octahedron

US /ˌɑːk.təˈhiː.drən/
UK /ˌɒk.təˈhiː.drən/
"octahedron" picture

Noun

a three-dimensional geometric shape with eight plane faces, especially a regular one with equilateral triangular faces

Example:
A regular octahedron has eight triangular faces and six vertices.
The crystal grew in the shape of a perfect octahedron.