Category:Quadric

Quad"ric, a. (math.)

Defn: of or pertaining to the second degree.

Quadric Quad"ric, n. (a) (alg.) A quantic of the second degree. See quantic. (b) (geom.) 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.