- c. phosphate cytidylic acid.
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cy·ti·dine 'sit-ə-.dēn, 'sīt- n a nucleoside containing cytosine
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n.
a compound containing cytosine and the sugar ribose. See also nucleoside.
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cy·ti·dine (siґtĭ-dēn) a purine nucleoside, cytosine linked by its N9 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid and its nucleotides are important in the synthesis of a variety of lipid derivatives. Symbol C.Medical dictionary. 2011.