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[sit-i-deen, -din, sahy-ti-] /ˈsɪt ɪˌdin, -dɪn, ˈsaɪ tɪ-/
noun, Biochemistry.
a white crystalline powder, C 9 H 13 N 3 O 5 , that is a ribonucleoside consisting of d -ribose and cytosine.
Origin of cytidine
< German Cytidin (1910), equivalent to cyt- cyto- + -idin suffix of organic compounds
Related forms
[sit-i-dil-ik, sahy-ti-] /ˌsɪt ɪˈdɪl ɪk, ˌsaɪ tɪ-/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for cytidine


(biochem) a nucleoside formed by the condensation of cytosine and ribose
Word Origin
C20: from cyto- + -ide + -ine²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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cytidine in Medicine

cytidine cy·ti·dine (sī'tĭ-dēn')
A white crystalline nucleoside composed of one molecule each of cytosine and ribose. Also called cytosine ribonucleoside.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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