/ Dictionary / Index D de Sitter: Meaning and Definition of Find definitions for: de Sit•ter Pronunciation: (du sit'ur), [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. desist desk Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language