| NOUN | shape | quadric, quadric surface | a curve or surface whose equation (in Cartesian coordinates) is of the second degree |
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| Meaning | A curve or surface whose equation (in Cartesian coordinates) is of the second degree. | |
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| Synonym | quadric surface | |
| Narrower | hyperboloid | A quadric surface generated by rotating a hyperbola around its main axis |
| Broader | curve, curved shape | The trace of a point whose direction of motion changes |
| Spanish | cuádrica | |
| Catalan | quadrica, quàdrica | |
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