egomaniacal definition
Medical Definition of EGOMANIA. : the quality or state of being extremely egocentric.â egoÂ·maÂ·niÂ·ac \-nÄ-Ëak\ noun. â egoÂ·maÂ·niÂ·aÂ·cal \-mÉ-ËnÄ«-É-kÉl\ adjective. â egoÂ·maÂ·niÂ·aÂ·calÂ·ly \-k(É-)lÄ\ adverb. the quality or state of being extremely egocentric.