| 释义 |
torus
 torusto·rus T0060800 (tôr′əs)n. pl. to·ri (tôr′ī) 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 a. The receptacle of a flower.b. A thickened area in the middle of the membrane that connects the pits of tracheids in conifers and certain other gymnosperms.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. (Architecture) Also called: tore a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column2. (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 circle3. (Botany) botany another name for receptacle24. (Anatomy) anatomy a ridge, fold, or similar linear elevation5. (Celestial Objects) astronomy a dense ring of gas and dust which surrounds a dying star, containing most of the star's ejected gas[C16: from Latin: a swelling, of obscure origin]to•rus (ˈtɔr əs, ˈtoʊr-)
n., pl. to•ri (ˈtɔr aɪ, ˈtoʊr aɪ) 1. a large convex molding, semicircular in profile, commonly forming the lowest member of the base of a column, directly above the plinth. 2. a. a doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane. b. the solid enclosed by such a surface. 3. Bot. the receptacle of a flower. 4. Anat. a rounded ridge; a protuberant part. [1555–65; < Latin: literally, strand, thong, raised ridge] Thesaurus| Noun | 1. |  torus - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circletoroidmagnetic 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core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories; "each core has three wires passing through it, providing the means to select and detect the contents of each bit"round shape - a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 columntoremoulding, molding - a decorative strip used for ornamentation or finishing |
TranslationsTorus
torus[′tȯr·əs] (anatomy) A rounded protuberance occurring on a body part. (botany) The thickened membrane closing a bordered pit. (mathematics) The surface of a doughnut-shaped object. The topological space obtained by identifying the opposite sides of a rectangle. The group which is the product of two circles. Torus a geometric solid formed by the rotation of a circle about a line lying in the plane of the circle but not intersecting the circle (see Figure 1). A torus is shaped approximately like a doughnut or a life ring. If the radius of the rotating circle is r and  Figure 1
the distance from the center of the circle to the axis of rotation is a, then the area of the surface of the torus is 4π2ar and the volume of the torus is 2π2ar2. The term “torus” is also applied to the surface bounding such a solid. torus  torus molding  torus A bold projecting molding, convex in shape, generally forming the lowest member of a base over the plinth.torus
torus [tor´us] (L.) a swelling or bulging projection.torus mandibula´ris a prominence sometimes seen on the lingual aspect of the mandible at the base of its alveolar part.torus palati´nus a bony protuberance sometimes found on the hard palate at the junction of the intermaxillary suture and the transverse palatine suture.to·rus, pl. to·ri (tō'rŭs, tō'rī), [TA] 1. A rounded swelling, such as that caused by a contracting muscle. Synonym(s): elevation (1) [TA]2. A geometric figure formed by the revolution of a circle around the base of any of its arcs, such as the convex molding at the base of a pillar. [L. swelling, knot, bulge] torus (tôr′əs)n. pl. tori (tôr′ī) 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 a. The receptacle of a flower.b. A thickened area in the middle of the membrane that connects the pits of tracheids in conifers and certain other gymnosperms.4. Mathematics A toroid generated by a circle; a surface having the shape of a doughnut. Also called tore2.to·rus, pl. tori (tōr'ŭs, -ī) 1. A geometric figure formed by the revolution of a circle around the base of any of its arcs, such as the convex molding at the base of a pillar. 2. A rounded swelling, such as that caused by a contracting muscle.
Synonym(s): elevation. [L. swelling, knot, bulge]torus the end of the stalk, bearing the flower parts and forming the succulent fruit in POMES, e.g. apples, pears, strawberries and rosehips. - (in ferns) the mass of tissue that becomes the SPORANGIUM.
- (in liverworts) the cup containing a GEMMA.
- (in algae) the swollen tip of a branch carrying the reproductive organs.
torus - a central thickened area in the BORDERED PITS of GYMNOSPERMS.
- see RECEPTACLE.
to·rus, pl. tori (tōr'ŭs, -ī) 1. [TA] Rounded swelling, such as that caused by a contracting muscle. 2. Geometric figure formed by revolution of a circle around the base of any of its arcs, such as the convex molding at the base of pillar. [L. swelling, knot, bulge]FinancialSeeelevationTORUS
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| TORUS➣Texas Oklahoma Regional Undergraduate Symposium (mathematics) | | TORUS➣Tools for Object-based Large-Scale Reuse in Industrial Systems Design |
torus
Related to torus: Torus mandibularis, Torus tubariusSynonyms for torusnoun a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circleSynonymsRelated Words- magnetic core
- core
- round shape
noun commonly the lowest molding at the base of a columnSynonymsRelated Words |