| Noun | 1. | rock and roll - a genre of popular music originating in the 1950s; a blend of Black rhythm-and-blues with White country-and-western; "rock is a generic term for the range of styles that evolved out of rock'n'roll."heavy metal - loud and harsh sounding rock music with a strong beat; lyrics usually involve violent or fantastic imagery art rock, progressive rock - a style of rock music that emerged in the 1970s; associated with attempts to combine rock with jazz and other forms; intended for listening and not dancing acid rock, psychedelic rock - a musical style that emerged in the mid-1960s; rock music inspired by or related to drug-induced experience punk rock, punk - rock music with deliberately offensive lyrics expressing anger and social alienation; in part a reaction against progressive rock | |