[mass noun]music characterized by a syncopated melodic line and regularly accented accompaniment, evolved by black American musicians in the 1890s and played especially on the piano 散拍乐,雷格泰姆
adjective
(informal, dated)disorderly; disreputable (非正式,旧)混乱的;声名狼藉的 a ragtime army. 声名狼藉的军队。