Compounds of purine or pyrimidine bases with a sugar, most commonly ribose. For example, adenine plus ribose forms adenosine. With the addition of phosphate a nucleotide is formed.
A hybrid molecule consisting of a purine (adenine, guanine) or pyrimidine (thymine, uracil, or cytosine) base covalently linked to a five-membered sugar ring (ribose in the case of RNA and deoxyribose in the case of DNA).
A compound consisting of a nitrogen-containing base (a purine or pyrimidine) linked to a sugar. Examples are adenosine, guanosine, cytidine, thymidine, and uracil.
A specific type of chemical compound found in deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Similar to a nucleotide.
A glycoside formed by the union of a purine or pyrimidine base with a sugar (pentose).