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Noun: gritrock
  1. A hard coarse-grained siliceous sandstone
    - grit, gritstone

Derived forms: gritrocks

Type of: sandstone

Nearest

grisly
grison
Grison vittatus
grissino
grist
gristle
gristly
gristmill
grit
grith
gritrock
grits
gritstone
gritter
grittiness
gritty
grivet
grizzle
grizzled
grizzly
grizzly bear