/ Dictionary / Index S satin spar: Meaning and Definition of Find definitions for: sat'in spar' Pronunciation: [key] — Mineral. Mineral. a fibrous variety of gypsum having a silky luster, used as a gem. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Satin Slipper, The* satin stitch 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