Notice: Undefined index: HTTP_REFERER in D:\CNES\index.php on line 3
Medical Definition of Pyrimidine

Definition of Pyrimidine

Pyrimidine: One of the two classes of bases in DNA and RNA. The pyrimidine bases are thymine (T) and cytosine (C) in DNA and cytosine (C) and uracil (U) in RNA.