destructive interference
noun [ C ] physics specialized uk/dɪˌstrʌk.tɪv ɪn.təˈfɪə.rəns/ us/dɪˌstrʌk.tɪv ɪn.t̬ɚˈfɪr.əns/
(物理学中两个或两个以上波之间的)相消干涉
the interference produced when two or more waves are not in phase and create a wave that is weaker then either of them