TPEa light that flashes on and off very quickly, often used in places where you can dance 〔常用于跳舞场所的〕频闪闪光灯
Examples from the Corpus
strobe light• She was dressed in black gauze and held a strobe light aloft like a mitre.• The station's interior variable message sign and accompanying exterior strobe light have not worked since May.
Originstrobe light
(1900-2000)stroboscope“instrument producing quickly flashing light”((19-21 centuries)), from Greekstrobos“going around quickly” + English-scope (as in telescope)