(loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology).

Origin of hard-rock

First recorded in 1920–25

hard rock


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
Related formshard rocker, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hard-rock

Contemporary Examples of hard-rock

Historical Examples of hard-rock

  • It relates not only to the hard-rock geology but to the gravel and surface geology.

  • And have Breck order half a dozen hard-rock drills from the blacksmith.

    Smoke Bellew

    Jack London

  • Most of the hundred or more operating leases of Rawhide were owned by these hard-rock miners.

British Dictionary definitions for hard-rock

hard rock


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