| electric arc | | |
| n. (phenomenon) | 1. arc, discharge, electric arc, electric discharge, spark | electrical conduction through a gas in an applied electric field. |
| ~ brush discharge | discharge between electrodes creating visible streamers of ionized particles. |
| ~ corona discharge, corposant, electric glow, saint elmo's fire, saint elmo's light, saint ulmo's fire, saint ulmo's light, st. elmo's fire, corona | an electrical discharge accompanied by ionization of surrounding atmosphere. |
| ~ flashover | an unintended electric discharge (as over or around an insulator). |
| ~ electrical conduction | the passage of electricity through a conductor. |
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