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WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
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WORDNET DICTIONARY
Noun cytosine has 1 sense
- cytosine(n = noun.substance) c - a base found in DNA and RNA and derived from pyrimidine; pairs with guanine; is a kind of pyrimidine
CIDE DICTIONARY
cytosine, n.
A pyrimidine (C4H5N3O ) which is one of the four major basic components of DNA and RNA in most organisms, forming glyosides with ribose and deoxyribose. It is the basic component of cytidine , deoxycytidine , cytosine , cytidine monophosphate , and derivatives of those compounds. [PJC]
OXFORD DICTIONARY
cytosine, n. one of the principal component bases of the nucleotides and the nucleic acids DNA and RNA, derived from pyrimidine.