cytosine

(sīt′ō sēn′)

noun

a pyrimidine base, CHNO, contained in the nucleic acids of all tissue: it links with guanine in the DNA structure

Origin: Ger zytosin < zyt-, cyto- + -os, -ose + -in, -ine

See cytosine in American Heritage Dictionary 4

cy·to·sine

noun Abbr. C

A pyrimidine base, C₄H₅N₃O, that is the constituent of DNA and RNA involved in base pairing with guanine.

Origin: cyt(o)- + (rib)os(e) + -ine².

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