Meaning of geodesic dome

ge'odes'ic dome'

Pronunciation: [key]
  1. a light, domelike structure developed by R. Buckminster Fuller to combine the properties of the tetrahedron and the sphere and consisting essentially of a grid of compression or tension members lying upon or parallel to great circles running in three directions in any given area, the typical form being the projection upon a sphere of an icosahedron, the triangular faces of which are filled with a symmetrical triangular, hexagonal, or quadrangular grid.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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