/ Dictionary / Index A anaclastic: Meaning and Definition of Find definitions for: an•a•clas•tic Pronunciation: (an"u-klas'tik), [key] — adj. Optics. of or pertaining to refraction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anacidity Anacletus Related Content Daily Word Quiz: diurnal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language