torus
Pronunciation:
/ˈtɔːɹəs//ˈtɔːɹəs/noun
Definitions
A topological space which is a product of two circles.
Example: A 4-variable Karnaugh map can be thought of, topologically, as being a torus.
The standard representation of such a space in 3-dimensional Euclidean space: a shape consisting of a ring with a circular cross-section: the shape of an inner tube or hollow doughnut.
(in combination, n-torus, 4-torus, etc.) The product of the specified number of circles.
A molding which projects at the base of a column and above the plinth.