hen·tai 
(hĕntī′)
(hĕntī′)n.
A style of sexually explicit comic books, animated video, and computer games originally developed in Japan.
[Japanese (from hentai (seiyoku), perverted (sexual desire), sexual perversion) : hen, changed, transformed, strange (from Middle Chinese pian`; also the source of Mandarin biàn, change) + tai, appearance, attitude (from Middle Chinese thaj`; also the source of Mandarin tài).]