/ Dictionary / Index M Mariel: Meaning and Definition of Find definitions for: Ma•riel Pronunciation: (Sp. mä-ryel'), [key] — n. a city and seaport of Cuba, on the W coast, SW of Havana. 34,467. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mariehamn Marielito Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language