性せい同どう一いつ性せい障しょう害がいせいどういつせいしょうがいMeanings1noungender identity disorder; GID; gender dysphoriamedicine›Medical term, now deprecated in favor of 性別違和 (gender dysphoria) in current diagnostic manuals. Still encountered in older medical contexts and legal documents.See also: 性別違和性せい同