Saint Ulmo's fire

Definitions of Saint Ulmo's fire
  1. noun
    an electrical discharge accompanied by ionization of surrounding atmosphere
    synonyms: Saint Elmo's fire, Saint Elmo's light, Saint Ulmo's light, St. Elmo's fire, corona, corona discharge, corposant, electric glow
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    type of:
    arc, discharge, electric arc, electric discharge, spark
    electrical conduction through a gas in an applied electric field
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