GREYWACKE


Meaning of GREYWACKE in English

n. (US graywacke) Geol. a dark and coarse-grained sandstone, usu. with an admixture of clay. [Anglicized f. G Grauwacke f. grau grey: see WACKE]

English main colloquial, spoken dictionary.      Английский основной разговорный словарь.