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St. Elmo's fire

[el-mohz]
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noun
  1. corona discharge.

Origin of St. Elmo's fire

named after St. Elmo (died a.d. 303), patron saint of sailors
Also called St. Elmo's light, St. Ulmo's fire, St. Ulmo's light.

St. Ulmo's fire

[uhl-mohz]
noun
  1. St. Elmo's fire.
Also called St. Ulmo's light.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018