- a sand or sandstone containing oil or tarry residue in the pore spaces.
Origin of oil sand
An Americanism dating back to 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a sandstone impregnated with hydrocarbons, esp such deposits in Alberta, Canada
- A stratum of sand or sandstone containing petroleum that can be extracted by way of wells. The term is also applied to limestone and dolomite strata that contain petroleum.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Surface deposits of tarry sand that contain large quantities of petroleum.
Extracting the oil from these sands is difficult and expensive.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.