diàn​yùn

corona discharge

电晕 電暈 diàn​yùn
corona discharge
A partial discharge of electricity on the surface of a conductor in a fluid medium, often occurring at sharp points or around high-voltage power lines; it is characterized by a faint glow similar to a lunar halo and a hissing sound.

Frequency

Movie subtitles
0.480 per million appears in 0% of films
Written text
0.212 per million

Sources