Torus meaning

tôrəs
Frequency:
(anatomy) A bulging or rounded projection or swelling.
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(botany) The end of the peduncle or flower stalk to which the floral parts (in the Asteraceae, the florets of a flower head) are attached; see receptacle.
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(architecture) A large convex molding, semicircular in cross section, located at the base of a classical column.
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(mathematics) A toroid generated by a circle; a surface having the shape of a doughnut.
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(anat.) Any rounded projection or swelling.
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(archit.) A large, convex molding used at the base of columns, etc., just above the plinth.
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(geom.) A surface, or its enclosed solid, generated by the revolution of a conic about any line that is external to the conic but in the same plane, as a doughnut-shaped figure that is generated by a circle or an ellipse.
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(anatomy) A bulging or rounded projection or swelling.
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A surface generated by rotating a circle about an axis that is in the same plane as the circle but does not intersect it. A torus resembles a donut and is a subtype of toroid.
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The torus-shaped apparatus that contains plasma in nuclear fusion reactors.
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(topology) A topological space which is a product of two circles.

A 4-variable Karnaugh map can be thought of, topologically, as being a torus.

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(mathematics) 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.
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(topology, in combination, n-torus, 4-torus, etc.) The product of the specified number of circles.
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(architecture) A molding which projects at the base of a column and above the plinth.
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Origin of torus

  • Latin bulge, knot, torus

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin torus (“swelling, protuberance").

    From Wiktionary