anti-clastic

anticlastic

[an-tee-klas-tik, an-tahy-]
adjective Mathematics.
(of a surface) having principal curvatures of opposite sign at a given point.
Compare synclastic.


Origin:
1865–70; anti- + clastic

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anticlastic (ˌæntɪˈklæstɪk)
 
adj
maths Compare synclastic (of a surface) having a curvature, at a given point and in a particular direction, that is of the opposite sign to the curvature at that point in a perpendicular direction

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