脱氧核苷酸 tuōyǎnghégānsuān deoxyribonucleotide Origin Definitions Defs Strokes Stroke Words Sentences Sents 脱氧 脫氧 tuōyǎng deoxidation to remove oxygen atoms from organic compounds in a chemical or biochemical process核苷酸 hégānsuān nucleotide The basic building block of nucleic acids like DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.