18+ ( ADULT CONTENT) Hentai-Term:- Hentai is a kanji compound of 変 (hen; "change", "weird", or "strange") and 態 (tai; "appearance" or "condition"). It also means " perversion" or "abnormality", especially when used as an adjective is the shortened form of the phrase ( hentai seiyoku) which means "sexual perversion". The character hen is catch-all for queerness as a peculiarity, it does not carry an explicit sexual reference. While the term has expanded in use to cover a range of publications including homosexual publications, remains primarily a hetero sexual term, as terms indicating homosexuality entered Japan as foreign words. apanese pornographic works are often simply tagged as prohibited"), meaning "prohibited to those not yet 18 years old", and seijin manga( "adult manga"). Less official terms also in use include eroanime, ero manga, and the English acronym AV (for "adult video"). Usage of the term hentai does not define a genre in Japan. Hentai is defined differently in English. Oxford Dictionary defines hentai as "a subgenre of the Japanese genres of manga and anime, characterized by overtly sexualized characters and sexually explicit images and plots." The origin of the word in English is unknown, but Anime Nation's John Oppliger points to the early 1990s, when a Dirty Pairerotic doujinshi (self-published work) titledH-Bombwas released, and when many websites sold access to images culled from Japanese erotic visual novels and games. The earliest English use of the term traces back to the rec.arts.anime boards; with a 1990 post concerning Happosai of Ranma ½ and the first discussion of the meaning in 1991. A 1995 Glossary on the rec.arts.anime boards contained reference to the Japanese usage and the evolving definition of hentai as "pervert" or "perverted sex". The Anime Movie Guide, published in 1997, defines " ecchi" (etchi) as the initial sound of hentai; it included that ecchi was "milder than hentai". A year later it was defined as a genre in Good Vibrations Guide to Sex. At the beginning of 2000, "hentai" was listed as the 45th most popular search term of the internet, while "anime" ranked 99th. The attribution has been applied retroactively to works such as Urotsukidōji, La Blue Girl, and Cool Devices.Urotsukidōjihad previously been described with terms such as "Japornimation", and "erotic grotesque", [prior to being identified as hentai.