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quadric

American  
[kwod-rik] / ˈkwɒd rɪk /

adjective

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


noun

  1. a quadric function.

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

quadric British  
/ ˈkwɒdrɪk /

adjective

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

  2. of the second degree

"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

noun

  1. 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

Etymology

Origin of quadric

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

Vocabulary lists containing quadric

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Show that quadric surface x2 + y2 + z2 + 2xy + 2xz + 2yz + x + y + z = 0 reduces to two parallel planes.

From Textbooks Mar. 30, 2016

For the following exercises, the graph of a quadric surface is given.

From Textbooks Mar. 30, 2016

Use the graph of the given quadric surface to answer the questions.

From Textbooks Mar. 30, 2016

However, this does not have to be the case for all quadric surfaces.

From Textbooks Mar. 30, 2016

“We were all trying to solve this quadric the same way, and then I realized we just had to invert the way we were looking at it.”

From "Tradition" by Brendan Kiely

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