a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
同义词：kettle, tympanum, tympani, timpani
kettledrum详细解释
ket.tle.drum n.Music （名词）【音乐】 A large copper or brass hemispherical drum with a parchment head that can be tuned by adjusting the tension.定音鼓：一种大的半球形红铜或黄铜鼓，面为羊皮纸，能通过调整拉力调音
