Medical

will-o'-the-wisp

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will-o'-the-wisp

(wĭl′ə-thə-wĭsp′)
n.
1. See ignis fatuus.
2. A delusive or misleading hope.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive
What is the popular name for ignis fatuus, the phosphorescent glow sometimes seen on marshes?
The heresies and blasphemies of Islam present a danger only to the "Christian Reader" who, "too like Turks," "abandoned the Sun of the Gospel" in pursuit of the "strange lights" of "this Ignis Fatuus of the Alcoran" (qtd.
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