Meaning of DUALITY in English

DUALITY

/ djuːˈæləti; NAmE duː-/ noun

[ U , C ] ( pl. -ies ) ( formal ) the state of having two parts or aspects

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WORD ORIGIN

late Middle English : from late Latin dualitas , from dualis , from duo two.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.