Definify.com

Webster 1913 Edition

Grauwacke

‖

Grau′wack-e

,

Noun.

[G.]

Graywacke.

Definition 2024

grauwacke

grauwacke

English

Noun

grauwacke ‎(countable and uncountable, plural grauwackes)

(geology) Greywacke.