/ Dictionary / Index M Mar del Plata: Meaning and Definition of Find definitions for: Mar del Pla•ta Pronunciation: (mär' el plä'tä), [key] a city in E Argentina: seaside resort. 407,024. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Marcy Mardi Gras Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language