资料来源 : pyDict

互反的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

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.