a·cous·tics /əˈkuːstɪks/[复] n. 1. [用作单]声学 Acoustics is taught in this college. 本院开设声学课。 2. (传声系统的)音质；音响效果 The acoustics of the concert hall are very good. 音乐厅的音响效果极佳。 The barking of the dog gave to the dark sky the acoustics of a shell. 狗吠声在黑沉沉的夜空中听上去像炮弹爆炸。