Geometry. A solid generated by the revolution of a conic section about its axis; a conicoid of revolution (esp. a paraboloid or hyperboloid, the…
| 单词 | θ115977 |
| 释义 | the world > relative properties > number > geometry > shape or figure > [noun] > three-dimensional > solid of revolution > formed from curve (9) conoida1664 Geometry. A solid generated by the revolution of a conic section about its axis; a conicoid of revolution (esp. a paraboloid or hyperboloid, the… paraboloid1677 A solid or surface whose cross sections in two mutually perpendicular directions are parabolas and those in the third are either ellipses… parabolic conoid1702 a paraboloid of revolution. spindle1706 Geometry. (See quots.) rare. hyperboloid1743 A solid or surface of the second degree, some of whose plane sections are hyperbolas, the others being ellipses or circles. Formerly restricted to… Subcategories:— torus (4) |
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