These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rock oil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1668, in the meaning defined above
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“Rock oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock%20oil. Accessed 5 Mar. 2021.
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