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oil shale: Meaning and Definition of

oil' shale"

Pronunciation: [key]
— Geol. Geol.
  1. a black or dark-brown shale or siltstone rich in bitumens, from which shale oil is obtained by destructive distillation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
oilseed oilskin
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