去氧核糖核酸 qùyǎnghétánghésuān DNA Origin Definitions Defs Strokes Stroke Words Sentences Sents 去氧核糖 qùyǎnghétáng deoxyribose an aldopentose sugar that is a key component of DNA核酸 hésuān nucleic acid An organic compound found in the cells of all living things and viruses, essential for growth, reproduction, and heredity.