# St. Elmo's fire

> English word · Noun

## Definitions
1. An electrical discharge, or corona, seen around pointed objects, caused by ionization of the atmosphere during storms.

## Etymology
After Erasmus of Formia, the patron saint of sailors, also known as St. Elmo.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/st-elmo-s-fire