The Collaborative International Dictionary
Anticlastic
Anticlastic \An`ti*clas"tic\, a. [Pref. anti- = Gr. ? to break.] Having to opposite curvatures, that is, curved longitudinally in one direction and transversely in the opposite direction, as the surface of a saddle.
Wiktionary
anticlastic
a. 1 (context of a surface English) curved in opposite ways in two directions; saddle-shaped 2 (context mathematics English) of a surface whose http://en.wikipedia.org/wiki/Gaussian%20curvature is negative at all points
Usage examples of "anticlastic".
At the end of the second statement, the Anticlastic Argument, a hand movement was called for.