hard-rock

[ hahrd-rok ]
/ ˈhɑrdˌrɒk /

adjective

(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

Words nearby hard-rock

hard-nosed, hard-of-hearing, hard-on, hard-pressed, hard-put, hard-rock, hard-sell, hard-set, hard-shell, hard-shell clam, hard-shell crab