/ Dictionary / Index F felspar: Meaning and Definition of Find definitions for: fel•spar Pronunciation: (fel'spär"), [key] — n. feldspar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: felspar (Thesaurus) felsite felspathic Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language