Ma'anar "corona discharge" tana nufin wani al'amari da ke faruwa a lokacin da fitarwar lantarki ta faru a cikin iskar gas, yawanci a kusa da matsa lamba na yanayi, kuma yana tare da ionization na kwayoyin halitta ko atom. Ma'ana, fitarwa ce ta lantarki da ke faruwa tsakanin lantarki guda biyu a cikin gas kuma yana haifar da haske mai haske ko corona a kewayen wayoyin. Ana amfani da fitarwar Corona sau da yawa a aikace-aikace daban-daban, gami da tsarkakewar iska, ƙirar ozone, da hazo na lantarki. Koyaya, kalmar "corona fitarwa" shima yana da alaƙa da cutar ta COVID-19 tunda kwayar cutar da ke haifar da ita ana kiranta da coronavirus.