November 27, 2015
font size

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.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 10/30/2013

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations