ambisexualityn.

1913 C. R. Payne tr. S. Ferenczi in Psychoanalytic Rev. 1 93 I propose to use instead of the expression ‘bisexual tendency’ in psychology the term ambisexuality [Ger. Ambisexualität]. Thereby would be signalled..the mental capacity in the child to turn his originally objectless eroticism toward the male or female or both sexes.

1959 J. D. Mercer They walk in Shadow vii. 170 Surely, when once the factors always involved in ambisexuality and homosexuality begin to be understood, genetically, morphologically, physiologically and psychologically, it becomes less and less possible to consider it all as a morbid manifestation.

1979 W. H. Masters & V. E. Johnson Homosexuality in Perspective viii. 147 It was difficult to find men and women who met the criteria of ambisexuality not only in their overt sexual behavior but in their lifestyles as well.

2011 Denver Westword (Nexis) 14 Apr. In this world, ambisexuality ruled..and our young American, ambivalent about his own sexuality, came close to being entirely seduced by the milieu.

1938 Jrnl. Exper. Zool. 79 475 The authors discovered a surprising condition of hormonal ambisexuality in the female starling.

1962 D. J. B. Ashley Human Intersex xvii. 227 The essential, and only, criterion for the diagnosis of ambisexuality is the demonstration of gonadal tissue appropriate both to the male and to the female in one individual.

1986 Amer. Naturalist 128 417 I started by assuming that ambisexuality [sc. in striped maple] could represent inconstant expression of either male or female gender phases.

2006 Rev. Environmental Contamination & Toxicol. 187 104 Although ambisexuality is not evident for most vertebrate species, it is the general rule for many groups of amphibians.