0 a large, powerful light at the front of a vehicle, usually one of two -- （汽车等的）头灯，前灯
1 a light worn on the head, for example when going under the ground -- （矿工等用的）头灯，额灯，帽灯
The surgeon wears a headlamp to control the light she needs.
Wearing headlamps and 20-pound backpacks, they set out to jog an 85-mile loop around Glacier Peak.
Unlike the headlamp, the candle is independent of the tortoise's current behaviour pattern.
At night the search was done with torches and headlamps.
