buttockKK [ˋbʌtək] /ˈbʌtək/名詞1臀部、屁股常用複數;較正式He sat down too quickly and bruised his left buttock.他坐下時太急,左邊臀部撞出了瘀青。2臀部、臀肉醫學The nurse gave him the injection in the buttock.護理師在他的臀部打了那一針。