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Any of various compounds, such as adenosine or guanosine, that consist of a sugar, usually ribose or deoxyribose, linked to a purine or pyrimidine base. Nucleosides are constituents of the nucleotides that make up nucleic acids.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biochemistry) biochem a compound containing a purine or pyrimidine base linked to a sugar (usually ribose or deoxyribose)
[C20: from nucleo- + -ose2 + -ide]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
nu•cle•o•side(ˈnu kli əˌsaɪd, ˈnyu-)
any of the class of compounds derived by the hydrolysis of nucleic acids or nucleotides, consisting typically of deoxyribose or ribose combined with adenine, guanine, cytosine, uracil, or thymine.
[< German Nucleosid (1909)]
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|Noun||1.||nucleoside - a glycoside formed by partial hydrolysis of a nucleic acid|
adenosine - (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP
glycoside - a group of compounds derived from monosaccharides
inosine - a nucleoside that is formed by the deamination of adenosine; used in kidney transplantation to provide a temporary source of sugar
deoxyadenosine - a nucleoside component of DNA; composed of adenosine and deoxyribose
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