phrase[ plural ]US(UKcat's eyes) small pieces of glass or plastic that are put along the middle and sometimes the sides of a road, to reflect the lights of a car, in order to show the driver where to drive when it is dark: （设置于公路中央或路侧在黑暗中引导车辆的）猫眼反光标记，猫眼反光镜 The state just put new reflectors along the highway. Reflectors have to be extremely tough to withstand vehicles repeatedly driving over them. A lane was closed where they were replacing the reflectors. Reflectors are a relatively low-cost way of improving traffic safety. So many nighttime accidents have happened at this curve that the police have added reflectors on the guardrails and the road for a half-mile ahead of the turn. See also