pyrimidine
py·rim·i·dine
noun \pī-ˈrim-ə-ˌdēn, pə-\Definition of PYRIMIDINE
1
: a weakly basic organic compound C4H2N2 of penetrating odor that is composed of a single six-membered ring having four carbon atoms with nitrogen atoms in positions one and three
2
: a derivative of pyrimidine having its characteristic ring structure; especially : a base (as cytosine, thymine, or uracil) that is a constituent of DNA or RNA
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