/ Dictionary / Index G gyttja: Meaning and Definition of Find definitions for: gyt•tja Pronunciation: (yit'chä), [key] — n. Geol. a mud rich in organic matter, found at the bottom or near the shore of certain lakes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. GySgt gyve Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language