羟基丁酸 qiǎngjīdīngsuān GHB Origin Definitions Defs Strokes Stroke Words Sentences Sents 羟基 羥基 qiǎngjī hydroxyl group a chemical group consisting of one hydrogen atom and one oxygen atom; also known as 氢氧基 qīngyǎngjī丁酸 dīngsuān butyric acid a carboxylic acid with a sharp odor, found in animal fats and plant oils, used in manufacturing flavorings and perfumes