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Definition of DNA noun from the Oxford Advanced American Dictionary

 

DNA

 noun
noun
NAmE//ˌdi ɛn ˈeɪ//
 
[uncountable] (chemistry)
 
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deoxyribonucleic acid(the chemical in the cells of animals and plants that carries genetic information and is a type of nucleic acid ) a DNA test
See the Oxford Advanced Learner's Dictionary entry: DNA