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

duality

noun
 
/djuːˈæləti/
 
/duːˈæləti/
[uncountable, countable]
(plural dualities)
(formal)
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  1. the state of having two parts or aspects
    Word Originlate Middle English: from late Latin dualitas, from dualis, from duo ‘two’.
See duality in the Oxford Advanced American DictionarySee duality in the Oxford Learner's Dictionary of Academic English
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adjective
 
 
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