from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A visible electric discharge on a pointed object, such as the mast of a ship or the wing of an airplane, during an electrical storm. Also called corposant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of St. Elmo's fire.
from the GNU version of the Collaborative International Dictionary of English
- n. a luminous, flamelike appearance, sometimes seen in dark, tempestuous nights, at some prominent point on a ship, particularly at the masthead and the yardarms. It has also been observed on land, and is due to the discharge of electricity from elevated or pointed objects. A single flame is called a Helena, or a Corposant; a double, or twin, flame is called a Castor and Pollux, or a double Corposant. It takes its name from St. Elmo, the patron saint of sailors.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an electrical discharge accompanied by ionization of surrounding atmosphere
After Saint Elmo, fourth-century A.D. patron saint of sailors.(American Heritage® Dictionary of the English Language, Fourth Edition)