quadric

[ kwod-rik ]

/ ˈkwɒd rɪk /

Mathematics

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adjective

of the second degree (said especially of functions with more than two variables).

noun

a quadric function.

a surface such as an ellipsoid or paraboloid as defined by a second-degree equation in three real variables.

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Origin of quadric

First recorded in 1855–60; quadr- + -ic

Words nearby quadric

quadrennial, quadrennium, quadri-, quadriad, quadribasic, quadric, quadricentenary, quadricentennial, quadricep, quadriceps, quadriceps muscle of thigh

How to use quadric in a sentence

Now from a quadric equation we derive, in like manner, the notion of a complex or imaginary number such as is spoken of above.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7|Various
Consider first a numerical quadric equation with imaginary coefficients.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7|Various
Evidently the method gives for L a quadric equation, which is the “resolvent” equation in this particular case.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7|Various
If a line moves so that it always cuts three given lines of which no two meet, then it generates a ruled quadric surface.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various

Each ray cuts its corresponding plane in a point, the locus of these points is a quadric surface.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various

British Dictionary definitions for quadric

quadric

/ (ˈkwɒdrɪk) maths /

adjective

having or characterized by an equation of the second degree, usually in two or three variables

of the second degree

noun

a quadric curve, surface, or function

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012