[rok-uh
n-rohl] 
| 1. | a style of popular music that derives in part from blues and folk music and is marked by a heavily accented beat and a simple, repetitive phrase structure. |
| 2. | of or pertaining to this music. |
| 3. | to dance to or play rock-'n'-roll. |
| rock 'n' roll or rock-and-roll (rŏk'ən-rōl') n. A form of popular music arising from and incorporating a variety of musical styles, especially rhythm and blues, country music, and gospel. Originating in the United States in the 1950s, it is characterized by electronically amplified instrumentation, a heavily accented beat, and relatively simple phrase structure. rock 'n' roller, rock'-and-roll'er n. |