nymphomaniac /ˌnɪm.fəʊˈmeɪ.niˌæk/adjective 1noun 1forms 3 adjective1 •(disapproving) Of a woman, having an excessive libido. noun1 •(disapproving) A woman who has an excessive libido.Xenia's such a nymphomaniac that she's not even satisfied with three lovers. formsnymphomaniacs · more nymphomaniac · most nymphomaniac