[noo-klee-uh-sahyd, nyoo-]
noun Biochemistry.
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.

1910–15; nucle(ic) + -ose2 + -ide Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
nucleoside (ˈnjuːklɪəˌsaɪd)
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 & Unabridged 10th Edition
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American Heritage
Medical Dictionary

nucleoside nu·cle·o·side (nōō'klē-ə-sīd', nyōō'-)
Any of various compounds consisting of a sugar, usually ribose or deoxyribose, and a purine or pyrimidine base, especially a compound obtained by hydrolysis of a nucleic acid, such as adenosine or guanine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
nucleoside   (n'klē-ə-sīd')  Pronunciation Key 
Any of various compounds consisting of a sugar, usually ribose or deoxyribose, and a nitrogen base (a purine or pyrimidine). Nucleosides are constituents of the nucleotides of nucleic acids. Adenosine and thymidine are nucleosides.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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