biennially

[bahy-en-ee-uh-lee]

adverb

1. every two years.

   The general election shall be held biennially on the Tuesday following the first Monday of November in each even-numbered year.

2. Botany.,  two years after starting to grow.

   The fruits are acorns, maturing biennially, and have saucer- to cup-shaped caps that cover about a quarter of the nut.

Word History and Origins

Origin of biennially¹

biennial ( def. ) + -ly

Example Sentences

Modeled on a millennia-old Greek tradition, the Olympic Truce has been introduced at the UN biennially since 1993 by the host country of the next edition of the Olympic Games.

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The Hero Cup has been introduced to give more players more experience of a matchplay team tournament with an eye on the Ryder Cup, which is staged biennially between Europe and the United States.

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The drill, dubbed Keen Sword, takes place biennially around Japan.

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Called the Rim of the Pacific Exercise, the drills are the world’s largest held biennially.

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Klöwer offered footprint-reducing ideas: moving the meeting to a central U.S. city to shorten travel, holding the conference biennially and encouraging virtual participation.

Read more on Scientific American