quaker['kweikə]n.1.■震动之物;颤抖者2.■【鸟类】素色鸟(澳大利亚夜鹭, Nycticorax caledonicus)3.■【昆虫】素色蛾(英国夜蛾, Graphiphora castanea)4.■[常用复数][英国方言] = quaking grass