/ Dictionary / Index B bêche-de-mer: Meaning and Definition of Find definitions for: bêche-de-mer Pronunciation: (besh"du mâr', bāsh"-), [key] — pl. bêch•es-de-mer, bêche-de-mer a trepang. Often,Neo-Melanesian. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bêche Bechet Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language