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Word of the Day Wednesday, June 10, 2026

icosahedron

/ˌaɪkəˈsædriːən/ noun · British & US
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What does icosahedron mean?

noun

A polyhedron with 20 faces, each an equilateral triangle. In geometry, an icosahedron is one of the five Platonic solids.

Example

"The mathematician studied the properties of the icosahedron and its relationship to the dodecahedron."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for icosahedron

Antonyms of icosahedron

Rhymes with icosahedron

Etymologically related