Etymology From pluri- + sexual, by analogy with monosexual.
1
Sexually attracted to members of multiple sexes.
My plurisexual friends discussed attraction to people of multiple genders with me.
He believes that man is born with a plurisexual disposition and that there is nothing unusual about his seeking satisfaction with either sex...1969, Joan Matthews, “Bisexuality in the Male”, in The Journal of Sex Research, volume 5, number 2, →DOI, page 126:
1 more example
Few studies have focused on nonbinary individuals aside from bisexuality or fail to differentiate between bisexuality and other plurisexual identities.2017, Christopher K. Belous, Melissa L. Bauman, “What's in a Name? Exploring Pansexuality Online”, in Journal of Bisexuality, volume 17, number 1, →DOI, page 60:
plurisexual
noun
Etymology From pluri- + sexual, by analogy with monosexual.
1
A plurisexual person.
Plurisexuals are often interpreted as half gay/half straight due to the prevailing belief that multigendered attractions are temporary, or illusory.2020, Rosie Nelson, “'What do bisexuals look like? I don't know!' Visibility, gender, and safety among plurisexuals”, in Journal of Sociology, volume 56, number 4, →DOI, page 591: