quadric surface

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noun

a three-dimensional surface whose equation is a quadratic equation.

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Origin of quadric surface

First recorded in 1880–85

Words nearby quadric surface

quadric, quadricentenary, quadricentennial, quadricep, quadriceps, quadric surface, quadricycle, quadriennial, quadriennium, quadrifid, quadriga

How to use quadric surface in a sentence

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
The surface itself is therefore called a quadric surface, or a surface of the second order.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various
A ruled quadric surface contains two sets of straight lines.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various

If through one point on a quadric surface no line on the surface can be drawn, then the surface contains no lines.
Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6|Various