/ Dictionary / Index S smectic: Meaning and Definition of Find definitions for: smec•tic Pronunciation: (smek'tik), [key] — adj. Physical Chem. noting a mesomorphic state in which the arrangement of the molecules is in layers or planes. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Smeaton smectite Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language