Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “DNA”

DNA

noun [U] uk   /ˌdiː.enˈeɪ/ specialized us  
C2 deoxyribonucleic acid: the chemical, present at the centre of the cells of living things, that controls the structure and purpose of each cell and carries genetic information during reproductionGeneticsInnate and congenitalSpecific chemicals, chemical compounds and gasesSubstances and structures in the bodyTypes of chemical
(Definition of DNA from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of DNA?
Add Cambridge dictionaries to your browser to your website

Definitions of “DNA” in other dictionaries

Word of the Day

pint

a measure for liquid equal to about half a litre

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More