/ Dictionary / Index E Estournelles de Constant, d': Meaning and Definition of Find definitions for: Es•tour•nelles de Con•stant d' Pronunciation: (de-str-nel du kôn-stän'), [key] 1852–1924, French diplomat: Nobel peace prize 1909. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Estoril estovers Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language