megalomania / měg"a-lõ-mã'né-a, -măn'ya/ noun 1. A psychopathological condition characterized by delusional fantasies of wealth, power, or omnipotence. 2. An obsession with grandiose or extravagant things or actions. 3. A form of mental alienation in which the patient has grandiose delusions. The American Heritage® Dictionary of the English Language, 5th Edition « + More at Wordnik