Related Searches
on Ask.com
ignis fatuus - 5 dictionary results
ig⋅nis fat⋅u⋅us
[ig-nis fach-oo-uh
s]
–noun, plural ig⋅nes fat⋅u⋅i [ig-neez fach-oo-ahy]
.
. | 1. | Also called friar's lantern, will-o'-the-wisp. a flitting phosphorescent light seen at night, chiefly over marshy ground, and believed to be due to spontaneous combustion of gas from decomposed organic matter. |
| 2. | something deluding or misleading. |
Origin:
1555–65; < ML: lit., foolish fire
1555–65; < ML: lit., foolish fire

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source
|
Link To ignis fatuus
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Ignis fatuus
Ig"nis fat"u*us\; pl. Ignes fatui. [L. ignis fire + fatuus foolish. So called in allusion to its tendency to mislead travelers.]1. A phosphorescent light that appears, in the night, over marshy ground, supposed to be occasioned by the decomposition of animal or vegetable substances, or by some inflammable gas; -- popularly called also Will-with-the-wisp, or Will-o'-the-wisp, and Jack-with-a-lantern, or Jack-o'-lantern. 2. Fig.: A misleading influence; a decoy. Scared and guided by the ignis fatuus of popular superstition. --Jer. Taylor.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
Cite This Source
Cite This Source
ignis fatuus
"will o' the wisp, jack-a-lantern," 1563, from M.L., lit. "foolish fire." It seems once to have been more common than presently.
Online Etymology Dictionary, © 2001 Douglas Harper
Cite This Source
Cite This Source
ignis fatuus
in meteorology, a mysterious light seen at night flickering over marshes; when approached, it advances, always out of reach. The phenomenon is also known as will-o'-the-wisp and ignis fatuus (Latin: "foolish fire"). In popular legend it is considered ominous and is often purported to be the soul of one who has been rejected by hell carrying its own hell coal on its wanderings. The phenomenon is generally believed to be due to the spontaneous ignition of marsh gas, which consists mostly of methane and which is produced by the decomposition of dead plant matter
Learn more about ignis fatuus with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Cite This Source
Copyright © 2009, Dictionary.com, LLC. All rights reserved.

