quadric

quadric
/kwod"rik/, Math.
adj.
1. of the second degree (said esp. of functions with more than two variables).
n.
2. a quadric function.
3. a surface such as an ellipsoid or paraboloid as defined by a second-degree equation in three real variables.
[1855-60; QUADR- + -IC]

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Universalium. 2010.

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