释义 |
WordReference Random House Unabridged Dictionary of American English © 2024to•rus (tôr′əs, tōr′-),USA pronunciation n., pl. to•ri (tôr′ī, tōr′ī).USA pronunciation - Archit. a large convex molding, more or less semicircular in profile, commonly forming the lowest molding of the base of a column, directly above the plinth, sometimes occurring as one of a pair separated by a scotia and fillets. See illus. at molding and column.
- [Geom.]
- a doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane.
- the solid enclosed by such a surface.
- [Bot.]
- the receptacle of a flower.
- a thickening of the wall membrane in the bordered pits occurring in the tracheid cells of the wood of many conifers.
- [Anat.]a rounded ridge;
a protuberant part. - Latin: literally, strand, thong, raised ridge
- 1555–65
Collins Concise English Dictionary © HarperCollins Publishers:: torus /ˈtɔːrəs/ n ( pl -ri / -raɪ/) Also called: tore a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column- 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
- another name for receptacle
Etymology: 16th Century: from Latin: a swelling, of obscure origin |