triennium

noun tri·en·ni·um \ trī-ˈe-nē-əm \
Updated on: 11 Sep 2017

Definition of triennium

plural trienniums or triennia play \trī-ˈe-nē-ə\
:a period of three years

Origin and Etymology of triennium

Latin, from tri- + annus year — more at annual


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to conform or adhere

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