Bible Dictionaries
Quadric
Webster's Dictionary
(1):
(a.) Of or pertaining to the second degree.
(2):
(n.) A quantic of the second degree. See Quantic.
(3):
(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.
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Bibliography Information
Webster, Noah. Entry for 'Quadric'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/q/quadric.html. 1828.