a pyrimidine base, CHNO, contained in the nucleic acids of all tissue: it links with guanine in the DNA structure
Origin of cytosineGerman zytosin from zyt-, cyto- + -os, -ose + -in, -ine
A pyrimidine base, C4H5N3O, that is the constituent of DNA and RNA involved in base-pairing with guanine.
Origin of cytosinecyt(o)- (rib)os(e) -ine 2
After German Cytosin, from cyto- + -ose + -ine.