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Definition of Icosahedron
1. Noun. Any polyhedron having twenty plane faces.
Definition of Icosahedron
1. n. A solid bounded by twenty sides or faces.
Definition of Icosahedron
1. Noun. (geometry) a polyhedron with twenty faces; the regular icosahedron has regular triangles as faces and is one of the Platonic solids. ¹
¹ Source: wiktionary.com
Definition of Icosahedron
1. [n -DRA or -DRONS]
Medical Definition of Icosahedron
1. A geometrical shape occurring in many virus particles, with 20 triangular faces and 12 corners. (09 Oct 1997)
Lexicographical Neighbors of Icosahedron
Literary usage of Icosahedron
Below you will find example usage of this term as found in modern and/or classical literature:
1. Theory and Applications of Finite Groups by George Abram Miller, Hans Frederick Blichfeldt, Leonard Eugene Dickson (1916)
"Group of the Regular icosahedron. Both the regular icosahedron and the regular
... Hence this group is frequently called the icosahedron group. ..."
2. The Collected Mathematical Papers of Arthur Cayley by Arthur Cayley (1896)
"the other pentagon : the 5 + 5 triangular faces of the two pyramids are ten of
the faces of the icosahedron, and the remaining ten faces are the triangles ..."
3. New Elements of Geometry by Seba Smith (1850)
"icosahedron.—The surface of the icosahedron is composed of twenty equilateral
triangles. In each of these solids the planes, constituting the surface, ..."
4. The Elements of Molecular Mechanics by Joseph Bayma (1866)
"11) of an equal power w are so arranged as to form a regular icosahedron, of
which the centre O is attractive and has a power v. ..."
5. Plato and the Older Academy by Eduard Zeller, Alfred Goodwin (1876)
"... of water, the icosahedron ; and of earth, the Cube:10 the fifth regular figure,
the Dodecahedron, he does not connect with an element.11 By compounding ..."
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