shale oil

noun
Updated on: 8 Nov 2017

Definition of shale oil

: a crude dark oil obtained from oil shale by heating

Recent Examples of shale oil from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'shale oil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of shale oil

1857


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