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Definition of Pyrimidine

Babylon English

heterocyclic organic compound, weak organic base; derivative of this base (esp. one that is a component of DNA or RNA)
Pyrimidine Definition from Language, Idioms & Slang Dictionaries & Glossaries
WordNet 2.0

1. any of several basic compounds derived from pyrimidine
(hypernym) base, alkali
(hyponym) cytosine, C
2. a heterocyclic organic compound with a penetrating odor
(hypernym) organic compound
Pyrimidine Definition from Medicine Dictionaries & Glossaries
Terms and Definitions
A nitrogen- containing, double- ring, basic compound that occurs in nucleic acids. The pyrimidines in DNA are cytosine and thymine; in RNA, cytosine and uracil.
Dictionary of Medicine (Shahram)
One of the two classes of bases in DNA and RNA. The pyrimidine bases are thymine (T) and cytosine (C) in DNA and thymine (T) and uracil (U) in RNA.
Aids Glossary
one of the 2 types of nucleotide base that make up DNA and RNA. The pyrimidine bases are cytosine, thymine and uracil. See also purine.
Pyrimidine Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. The other diazines are pyrazine (nitrogen atoms at the 1 and 4 positions) and pyridazine (nitrogen atoms at the 1 and 2 positions). In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U).

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