English Explanatory Dictionary

nucleoside

English dictionary entry

Meanings

noun
  1. 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.

Pronunciation

/ˈn(j)u(ː)kliəˌsaɪd/ /ˈn(j)u(ː)klioʊˌsaɪd/ LL-Q1860 (eng)-Vealhurl-nucleoside.wav

Word forms

nucleoside nucleosides

Etymology

Probably from nucleo- + (glyc)oside.

Related words

DNA nucleobase nucleotide RNA

Derived words

aminonucleoside anhydronucleoside antinucleoside azanucleoside C-nucleoside deoxynucleoside desoxynucleoside dideoxynucleoside dinucleoside ectonucleoside internucleoside iodonucleoside mononucleoside nonnucleoside nucleosidase nucleosidic oligonucleoside phosphonucleoside ribonucleoside thionucleoside
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