/ Dictionary / Index E éclaircissement*: Meaning and Definition of Find definitions for: é•clair•cisse•ment Pronunciation: (ā-kler-sēs-män'), [key] — pl. -ments clarification; explanation. (cap.) the Enlightenment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. éclair eclampsia Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language