Definition of quadric in English: quadric
adjective Geometry (of a surface or curve) described by an equation of the second degree.
Example sentences
‘His doctorate was awarded by Leiden in 1870 for a dissertation Homography applied to the theory of quadric surfaces.’ noun Geometry A quadric surface or curve.
Example sentences
‘He also published a number of papers on the cubic surface, studying lines on the surface, and other topics such as the Schur quadric.’ ‘The book contains a wealth of information concerning the projective geometry of conics and quadrics.’ ‘His work in geometry included a study of conics, quadrics and projective geometry.’ ‘The equation of the scroll of tangents of the common curve of two quadrics is due to Cayley in 1850.’ Origin Mid 19th century: from Latin quadra ‘square’ + -ic.
Pronunciation quadric /ˈkwädrik/ /ˈkwɑdrɪk/