Icosidodecahedron

Part of speech: noun

Definitions

1. A three-dimensional solid composed of 62 faces, including 20 equilateral triangles and 12 regular pentagons, represents a unique type of Archimedean polyhedron
2. This intricate geometric form, featuring a blend of triangular and pentagonal facets, is distinguished by its remarkable symmetry and face arrangement
3. A complex polyhedron with 32 edges and 60 vertices characterized by its combination of 12 regular pentagons and 20 equilateral triangles, showcasing a unique geometric harmony

Etymology: The name is a plain piece of Greek arithmetic. "Icosi" comes from the Greek "eikosi," meaning twenty, and "dodeca" from "dṓdeka," meaning twelve, the two numbers that count the solid's triangles and pentagons. "Hedron" is the Greek word for a face or seat, the same element found in "polyhedron" and "tetrahedron." Put together, the name simply reports the solid's construction: twenty plus twelve, with faces. The shape itself is named for its faces, and the number is built into its name. Because it is made of 20 triangles and 12 pentagons, the word is a compound of the two face counts joined to the Greek "hedron," with no special story behind the coinage. Its formation follows the same pattern as the other Greek-based names for solids, which were assembled in the same way from numerals and "hedron."