Brush discharge and Electric discharge

Brush discharge noun - Discharge between electrodes creating visible streamers of ionized particles.

Electric discharge and brush discharge are semantically related. In some cases you can use "Electric discharge" instead a noun phrase "Brush discharge".

Electric discharge noun - Electrical conduction through a gas in an applied electric field.

Brush discharge and electric discharge are semantically related. Sometimes you can replace phrase "Brush discharge" with "Electric discharge", this phrases are similar.