Molasse

noun

Mo·​lasse

məˈläs

plural -s

: a series of fossiliferous sedimentary deposits in and near Switzerland that are chiefly of Miocene age but include some Upper Oligocene beds

Word History

Etymology

French, perhaps alteration of mollasse soft, from mou (after Italian mollaccio soft: molle soft, from Latin mollis), from Latin mollis

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now