/ Dictionary / Index A acid rock: Meaning and Definition of Find definitions for: ac'id rock' Pronunciation: [key] rock-'n'-roll music characterized by loud electronic distortions and strident lyrics that refer to drug-induced experiences. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acid rain acid salt Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language