Nucleoside
WordNet
noun
(1) A glycoside formed by partial hydrolysis of a nucleic acid
WiktionaryText
Noun
- an organic molecule in which a nitrogenous heterocyclic base (or nucleobase), which can be either a double-ringed purine or a single-ringed pyrimidine, is covalently attached to a five-carbon pentose sugar (deoxyribose in DNA or ribose in RNA). When the phosphate group is covalently attached to the pentose sugar, it forms a nucleotide.
Noun
- nucleoside