Definition of "bimillennial" []

• The 2,000th anniversary of an event or happening. (noun)
• Occurring every thousand (2,000) years and 2 millennia. (adjective)

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• "In an ingenious and thought-provoking paper some time ago, Jerrold Levinson put forward a novel and imaginative thesis purporting to explain why tropism never quite got off the ground, despite its respectable bimillennial launch history (1980)."
• "The almost universal theme of the writers and orators who have celebrated this bimillennial epoch has been the future rather than the past, not the advance that has been made, but the progress that shall be made, ever onward and upward, till the race shall achieve its ineffable destiny."