rimrock

US:USA pronunciation: respellingUSA pronunciation: respelling(rim′rok′)


WordReference Random House Unabridged Dictionary of American English © 2026
rim•rock  (rim′rok′),USA pronunciation n. [Geol.]
  1. Geologyrock forming the natural boundary of a plateau or other rise.
  2. Geologybedrock forming the natural boundary of a placer or of a gravel deposit.
  • rim + rock1 1855–60, American.

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