An electrical discharge characterized by a corona and occurring when one of two conducting surfaces (such as electrodes) in a gas is shaped such that it concentrates the electric field at its tip and ionizes the surrounding air.
"corona discharge." YourDictionary, n.d. Web. 08 December 2018. <https://www.yourdictionary.com/corona-discharge>.
corona discharge. (n.d.). Retrieved December 08th, 2018, from https://www.yourdictionary.com/corona-discharge
An electrical discharge characterized by a corona, occurring when one of two conducting surfaces (such as electrodes) of differing voltages has a pointed shape, resulting in a highly concentrated electric field at its tip that ionizes the air (or other gas) around it. Corona discharge can result in power loss in the transmission of electric power, and is used in photocopying machines and air-purification devices.