/ Dictionary / Index S smectite: Meaning and Definition of Find definitions for: smec•tite Pronunciation: (smek'tīt"), [key] — n. Mineral. montmorillonite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. smectic Smedley 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