/ Dictionary / Index A anticlastic: Meaning and Definition of Find definitions for: an•ti•clas•tic Pronunciation: (an"tē-klas'tik, an"tī-), [key] — adj. Math. (of a surface) having principal curvatures of opposite sign at a given point. Cf. synclastic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anticipatory assimilation anticlerical Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language