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Definition of DNA noun from the Oxford Advanced Learner's Dictionary

 

DNA

 noun
noun
BrE BrE//ˌdiː en ˈeɪ//
 
; NAmE NAmE//ˌdiː en ˈeɪ//
 
[uncountable] (chemistry) Genetic engineering, Cell biology
 
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the abbreviation for 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 Wordfinderbiology, biotechnology, breed, cell, chromosome, DNA, gene, mutation, organism, protein See related entries: Genetic engineering, Cell biology
See the Oxford Advanced American Dictionary entry: DNA