A searchlight is a large powerful light that can be turned to shine a long way in any direction.
英汉词典释义
n.
探照灯
Big searchlights are searching the sky.巨大的探照灯正搜索着天空。He played a searchlight on an object.他用探照灯照射目标。He was suddenly caught in the full beam of a searchlight.他突然被探照灯照中而暴露无遗。
英英词典释义
Noun
1. a light source with reflectors that projects a beam of light in a particular direction