to·rus (tôr  s, t r-)n. pl. to·ri (tôr  , tr) 1. Architecture A large convex molding, semicircular in cross section, located at the base of a classical column. 2. Anatomy A bulging or rounded projection or swelling. 3. Botany The receptacle of a flower. 4. Mathematics A toroid generated by a circle; a surface having the shape of a doughnut. Also called tore2. [Latin, bulge, knot, torus.] |   |
torus [ˈtɔːrəs]
n pl -ri [-raɪ]
1. (Fine Arts & Visual Arts / Architecture) Also called tore a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column
2. (Mathematics) Geometry a ring-shaped surface generated by rotating a circle about a coplanar line that does not intersect the circle. Area: 4π2Rr; volume: 2π2Rr2, where r is the radius of the circle and R is the distance from the line to the centre of the circle
3. (Life Sciences & Allied Applications / Botany) Botany another name for receptacle [2]
4. (Life Sciences & Allied Applications / Anatomy) Anatomy a ridge, fold, or similar linear elevation
[from Latin: a swelling, of obscure origin]
| torus (tôrs) Plural tori (tôr ) 1. 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. 2. The torus-shaped apparatus that contains plasma in nuclear fusion reactors. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  torus - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circlemagnetic core, core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories; "each core has three wires passing through it, providing the means to select and detect the contents of each bit" round shape - a shape that is curved and without sharp angles |
| 2. |  torus - commonly the lowest molding at the base of a column |
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