A nucleoside component of DNA containing 2-deoxy-d-ribose; the condensation product of deoxy-d-ribose with purines or pyrimidines.
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de·oxy·ri·bo·nu·cleo·side (de-ok″se-ri″bo-nooґkle-o-sīd) a nucleoside having a purine or pyrimidine base bonded to deoxyribose.Medical dictionary. 2011.