[sit-i-deen, -din, sahy-ti-]

noun Biochemistry.

a white crystalline powder, C9H13N3O5, 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 formscyt·i·dyl·ic [sit-i-dil-ik, sahy-ti-] /ˌsɪt ɪˈdɪl ɪk, ˌsaɪ tɪ-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cytidine



biochem a nucleoside formed by the condensation of cytosine and ribose

Word Origin for cytidine

C20: from cyto- + -ide + -ine ²
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

cytidine in Medicine




A white crystalline nucleoside composed of one molecule each of cytosine and ribose.cytosine ribonucleoside
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.