- (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology).
Compare soft-rock geology.
Origin of hard-rock
First recorded in 1920–25
- the original form of rock-'n'-roll, basically dependent on a consistently loud and strong beat.
Compare soft rock.
Origin of hard rock
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hard-rock
“How old is”—Ryan likes to play up his age by talking about his hard-rock music tastes.
It relates not only to the hard-rock geology but to the gravel and surface geology.The Economic Aspect of Geology
C. K. Leith
And have Breck order half a dozen hard-rock drills from the blacksmith.Smoke Bellew
Most of the hundred or more operating leases of Rawhide were owned by these hard-rock miners.My Adventures with Your Money
George Graham Rice
- music a rhythmically simple and usually highly amplified style of rock and roll
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012