- 1. n. A conglomerate or grit rock, consisting of rounded pebbles sand firmly united together. Source: opted
- 2. A conglomerate or grit rock, consisting of rounded pebbles sand firmly united together. Note: This term, derved from the grauwacke of German miners, was formerly applied in geology to different grits and slates of the Silurian series; but it is now seldom used. Source: webster
- 3. A conglomerate or grit rock, consisting of rounded pebbles sandfirmly united together. Source: adambom
- 4. n. A conglomerate or grit rock, consisting of rounded pebbles sand firmly united together. Source: ecdict
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graywacke
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