Etymology
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bisexuality (n.)

"attraction to both sexes" 1892, in translation of Krafft-Ebing; see bisexual + -ity. Earlier "quality of having the organs of both sexes" (1850).

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Definitions of bisexuality

bisexuality (n.)
showing characteristics of both sexes;
Synonyms: androgyny / hermaphroditism
bisexuality (n.)
sexual activity with both men and women;
From wordnet.princeton.edu