A regular geometric polyhedron with 20 equilateral trangular faces and 12 corners. This is a particularly stable structure. The capsid of many phages and viruses are icosahedral.
any polyhedron having twenty plane faces
a solid figure consisting of twenty triangular faces
a solid figure contained by twenty equal and equilateral triangles
a three dimensional shape composed of twenty faces, each of which is an equilateral triangle
(plural: icosahedra) A polyhedron consisting of twenty equilateral triangles which are grouped with 5 triangles around each vertex. Icosahedra are commonly used as a basis for geodesic dome designs because they are fairly round to begin with.
It is a name given to twenty sided polyhedron where all sides are equidimensional. Minerals such shaped belongs to isometric system. Plural: Icosahedra or Icosahedrons.
A twenty-sided figure, each side being a triangle. One of the " platonic primitives" Aladdin4D is capable of generating. Icosahedron
Twenty sided polyhedron; all sides are equidimensional. Minerals shaped as icosahedrons belong to the isometric system.
An icosahedron is a twenty-sided geometric solid.
(1) A 20 sided polyhedron. (2) The Platonic solid consisting of twenty equilateral triangles.
Geometric Structure with 20 Equilateral Triangular Faces ID Institute of Design Chicago IL USA IIT Illinois Institute of Technology " " "
[Etymology: 16th Century: from Greek eikosaedron, from eikosi twenty + -edron -hedron], "icosa'hedral adjective