erotomaniaPronunciation: /ɪˌrɒtə(ʊ)ˈmeɪnɪə/Definition of erotomania noun [mass noun] excessive sexual desire. Psychiatry a delusion in which a person (typically a woman) believes that another person (typically of higher social status) is in love with them. Derivatives erotomaniacPronunciation: /-nɪak/ noun erotomania in other Oxford dictionaries Definition of erotomania in the US English dictionary