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rimrock

[rim-rok] /ˈrɪmˌrɒk/
noun, Geology
1.
rock forming the natural boundary of a plateau or other rise.
2.
bedrock forming the natural boundary of a placer or of a gravel deposit.
Origin
1855-1860
1855-60, Americanism; rim + rock1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for rimrock
  • Head northeast along top of rim to a break in the rimrock.
British Dictionary definitions for rimrock

rimrock

/ˈrɪmˌrɒk/
noun
1.
rock forming the boundaries of a sandy or gravelly alluvial deposit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for rimrock

15
17
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