English

Noun

nucleoside ‎(plural nucleosides)

1. (biochemistry) 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.

Derived terms

• C-nucleoside
• nucleosidase

Meronyms

• nucleobase

Translations

See also

• DNA
• nucleobase
• nucleotide
• RNA

Italian

Noun

nucleoside m ‎(plural nucleosidi)

1. (biochemistry) nucleoside