shale oil
noun
petroleum distilled from oil shale.
Origin of shale oil
First recorded in 1855–60
Words nearby shale oil
shakuntala,
shaky,
shakyamuni,
shalach manoth,
shale,
shale oil,
shall,
shall i compare thee to a summer's day?,
shalloon,
shallop,
shallot
British Dictionary definitions for shale oil
shale oil
noun
an oil distilled from shales and used as fuel