丁醛 dīngquán butyraldehyde Definitions Defs Origin Strokes Stroke Words Sentences Sents 丁 dīng butyl (chemistry) A prefix or group indicating a four-carbon chain, such as butyl.醛 quán aldehyde (bound form) any of a class of organic compounds containing a carbonyl group with a single hydrogen atom; common examples include 甲醛 jiǎquán and 乙醛 yǐquán
