molasse
- a soft sediment produced by the erosion of mountain ranges after the final phase of mountain building
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Word Origin
C18: from French, perhaps alteration of mollasse, from Latin mollis soft
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for molasse
Historical Examples
In some places a decided agreement of the fossil fishes of the molasse and faluns has been observed.
A Manual of Elementary GeologyCharles Lyell.