adenosine - (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP

glycoside - a group of compounds derived from monosaccharides

deoxyadenosine - a nucleoside component of DNA; composed of adenosine and deoxyribose

cytidine, deoxycytidine - a nucleoside component of DNA; composed of cytosine and deoxyribose

deoxyguanosine, guanosine - a nucleoside component of DNA; composed of guanine and deoxyribose

deoxythymidine, thymidine - a nucleoside component of DNA; composed of thymine and deoxyribose