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8 Wintry Words to Defrost Your Vocabulary

rock oil

noun
1.
Origin
1660-1670
1660-70; translation of Medieval Latin petroleum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for rock oil

rock oil

noun
1.
another name for petroleum
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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Difficulty index for rock oil

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Word Value for rock

10
11
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