GRAYWACKE


Meaning of GRAYWACKE in English

transcription, транскрипция: [ ˈgrā-ˌwak, -ˌwa-kə ]

noun

Etymology: partial translation of German Grauwacke

Date: 1811

: a coarse usually dark gray sandstone or fine-grained conglomerate composed of firmly cemented fragments (as of quartz or feldspar)

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.