13 letters · 28 points in Scrabble
noun a sexual attraction to (or sexual relations with) persons of the same sex
originFrom homosexual + -ity, equivalent to homo- + sexuality and after the model of German Homosexualität, coined by journalist Karl Maria Kertbeny in 1869, and French homosexualité, attested in 1891.
Etymology from Wiktionary, CC BY-SA 3.0