noun🔗SharePyrimidineA diazine in which the two nitrogen atoms are in the meta- positions; it is the basis of three of the bases found in DNA and RNA: thymine, uracil and cytosine"In biology class, we learned that cytosine, thymine, and uracil, three important building blocks of DNA and RNA, are all types of pyrimidine bases. "En cours de biologie, nous avons appris que la cytosine, la thymine et l'uracile, trois éléments constitutifs importants de l'ADN et de l'ARN, sont tous des types de bases pyrimidiques.biochemistrybiologychemistrycompoundChat with AIVocabulary GamePractice Reading