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English definition of “megalomania”

megalomania

noun [U]     /ˌmeɡ.əl.əˈmeɪ.ni.ə/
an unnaturally strong wish for power and control, or the belief that you are very much more important and powerful than you really areMental and psychiatric disorders megalomaniac     /-æk/ noun [C] megalomaniac     adjective [before noun] (also megalomaniacal)
(Definition of megalomania noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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