/ Dictionary / Index H hard rock: Meaning and Definition of Find definitions for: hard' rock' Pronunciation: [key] the original form of rock-'n'-roll, basically dependent on a consistently loud and strong beat. Cf. soft rock. hard-rock Pronunciation: (härd'rok"), [key] — adj. (loosely) of or pertaining to igneous or metamorphic rocks, as in mining and geology Cf. soft-rock geology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hard-put hard rubber Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language