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torus
subjectfact 
torushas dimensions 32001-09-27 09:32:37.0
has definition The topological name for the shape of a donut. While a donut is a two-dimensional surface in a three-dimensional space, the torus can be generalized to higher numbers of dimensions.has source: Peat, D. 1988 Superstrings and the Search for a Theory of Everything, Contemporary Books, 2001-09-27 09:32:37.0
has definition The two-dimensional surface of a doughnut.has source: Greene, B. 1999 The Elegant Universe, W.W. Norton and Co., New York, 2001-09-27 09:32:37.0
is a kind of geometrical object2001-09-27 09:32:37.0