Definitions for guanineˈgwɑ nin
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Random House Webster's College Dictionary
gua•nineˈgwɑ nin(n.)
a purine base, C5H5N5O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine.
Category: Biochemistry
Ref: Symbol: G 4 6 2; Compare guanosine.
Origin of guanine:
1845–55; guan (o ) + -ine2
Princeton's WordNet
guanine, G(noun)
a purine base found in DNA and RNA; pairs with cytosine
Wiktionary
guanine(Noun)
A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA.
Origin: From guano + -ine.
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