a psychopathological disorder resulting from delusions of magnificence, grandeur, or omnipotent power -- usually, but not limited in the interests of money or other wealth.
(1) Adolf Hitler

(2) Saddam Hussein

(3) Osama BinLaden
by Postman January 13, 2005
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The tiny green creature below is a common source of megalomania.
by ArminArlert August 27, 2017
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