/gray"wak', -wak'euh/ , n.
Geol. a dark-gray coarse-grained wacke.
Also, greywacke .
[ 1805-15; partly trans., partly adapted from G Grauwache; see WACKE ]
/gray"wak', -wak'euh/ , n.
Geol. a dark-gray coarse-grained wacke.
Also, greywacke .
[ 1805-15; partly trans., partly adapted from G Grauwache; see WACKE ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012