/ Dictionary / Index M Mount Desert Island: Meaning and Definition of Find definitions for: Mount" Des'ert Is'land Pronunciation: (dez'urt, di-zûrt'), [key] an island off the coast of E central Maine: summer resort; forms part of Acadia National Park. 14 mi. (23 km) long; 8 mi. (13 km) wide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mount Clemens mountebank Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language