biennium
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.bi·en·ni·um
noun \bī-ˈe-nē-əm\ plural bi·en·ni·ums or -nia\-nē-ə\
Definition of BIENNIUM
: a period of two years
Origin of BIENNIUM
Latin, from bi- + annus year — more at annual
First Known Use: 1899
Rhymes with BIENNIUM
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