trisexual

English

Etymology 1

tri- +‎ sexual

Adjective

trisexual (not comparable)

1. Having, or pertaining to a system which involves, three sexes.
   • 1937, William Robin Thompson, Science and Common Sense: An Aristotelian Excursion:

     Whether three sexes could exist in this contexture, or whether a trisexual organism would be quite different from the organisms we know, it is impossible to say.

   • 1982, Roger Hufford, Droid's Dilemma, →ISBN:

     Trimates and Three Autos
     The Trimates are a trisexual race from the planet Tiberon. Each union consists of a Polar, who always tells the truth, a Polee, who makes only false statements, and a Nexus, who makes statements that are […]

   • 1983, Nottingham French studies, volumes 22-25, page 34:

     Earth, a bisexual planet, represents its childhood, Herschel (trisexual), its [the soul's] adolescence, Saturn (trisexual), its maturity, and Jupiter (bisexual), its old age. Eventually the orchestrated symphony leads to the metempsychosis of planets.

Noun

trisexual (plural trisexuals)

1. An organism (that is, a species) which has three sexes.
   • 1982, Roger Hufford, Droid's Dilemma, →ISBN:

     Trimates are trisexuals from the planet Tiberon, visiting earth in their flying saucers. Each union consists of a Polar, who always tells the truth; a Polee who always lies; and a Nexus, who makes statements that are […]

Etymology 2

try +‎ sexual, respelled as if using tri- and as if analogous to bisexual.

Adjective

trisexual (not comparable)

1. (humorous or derogatory) Of a person, willing to "try anything" sexually.
   • 1944(?), Louis Paul, A Passion for Privacy:

     "I was told he's trisexual." "Quit it!" Alice laughed. "There's no such thing as trisexual." "I guess you don't read the new books, dearie. That's someone who'll try anything." Alice held her nose.

   • 1987, Larry Wilde, The Official Executives Joke Book, Bantam Books, →ISBN:

     "Yes, and she's trisexual." "Trisexual? What does that mean?" "She'll try anything!"

Noun

trisexual (plural trisexuals)

1. One who is trisexual.