Descarga intermitente emitida por um condutor quando o potencial excede certos limites, mas é insuficiente para a formação de uma verdadeira faísca.
Meaning
A brush discharge is a type of corona discharge that takes place between two electrodes embedded in a nonconducting medium (e.g., air at atmospheric pressure) and is characterized by nonsparking, faintly luciferous furcations composed of ionized particles. (http://en.wikipedia.org...)