Quadric

[kwɒdrik]

Definition

(noun.) a curve or surface whose equation (in Cartesian coordinates) is of the second degree.

Typed by Duane--From WordNet

Definition

(a.) Of or pertaining to the second degree.

(n.) A quantic of the second degree. See Quantic.

(n.) A surface whose equation in three variables is of the second degree. Spheres, spheroids, ellipsoids, paraboloids, hyperboloids, also cones and cylinders with circular bases, are quadrics.

Inputed by Gracie

Definition

adj. (alg.) of the second degree quadratic—esp. in solid geometry and where there are more than two variables.—n. Quad′ricone a quadric cone.

Edited by Gertrude