英语词汇“torus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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torus

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torus in British English

(ˈtɔːrəs)

nounWord forms: plural -ri (-raɪ)

1. Also called: tore

a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column

2. 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. botany another name for receptacle (sense 2)

4. anatomy

a ridge, fold, or similar linear elevation

5. astronomy

a dense ring of gas and dust which surrounds a dying star, containing most of the star's ejected gas

Word origin

C16: from Latin: a swelling, of obscure origin

torus in American English

(ˈtoʊrəs; ˈtɔrəs)

nounWord forms: plural ˈtoˌri (ˈtɔrˌraɪ; ˈtɔraɪ)

1. Anatomy

any rounded projection or swelling

2. Architecture

a large, convex molding used at the base of columns, etc., just above the plinth

3. Botany

receptacle (sense 3) receptacle (sense 3a)

a thick spot at the center of the pit membrane in bordered pits of xylem cells

4. Geometry

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 generatedby a circle or an ellipse

Word origin

L, a bulge, muscle

单词	torus
释义	Trends of torus View usage for: torus in British English (ˈtɔːrəs) nounWord forms: plural -ri (-raɪ) 1. Also called: tore a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column 2. 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. botany another name for receptacle (sense 2) 4. anatomy a ridge, fold, or similar linear elevation 5. astronomy a dense ring of gas and dust which surrounds a dying star, containing most of the star's ejected gas Word origin C16: from Latin: a swelling, of obscure origin torus in American English (ˈtoʊrəs; ˈtɔrəs) nounWord forms: plural ˈtoˌri (ˈtɔrˌraɪ; ˈtɔraɪ) 1. Anatomy any rounded projection or swelling 2. Architecture a large, convex molding used at the base of columns, etc., just above the plinth 3. Botany a. receptacle (sense 3) receptacle (sense 3a) b. a thick spot at the center of the pit membrane in bordered pits of xylem cells 4. Geometry 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 generatedby a circle or an ellipse Word origin L, a bulge, muscle
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Trends oftorus

torus in British English

torus in American English

Trends of
torus