Biennial means (an event) lasting for two years or occurring every two years. The related term biennium is used in reference to a period of two years.
In particular, it can refer to:
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Biennial plant
A biennial plant is a flowering plant that, generally in a temperate climate, takes two years to complete its biological life cycle.
Life cycle
In its first year, the biennal plant undergoes primary growth, during which its vegetative structures ...
, a plant which blooms in its second year and then dies
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Biennale
Biennale (), Italian for "biennial" or "every other year", is any event that happens every two years. It is most commonly used within the art world to describe large-scale international contemporary art exhibitions. As such the term was popularis ...
, the Italian word for "biennial" and a term used within the art world to describe an international exhibition of contemporary art, stemming from the use of the phrase for the
Venice Biennale. (The English form, "biennial", is also commonly used to describe these art events.)
See also
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Biannual, meaning twice a year
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Biennial bearing
Biennial bearing (or alternate) bearing is a term used in pomology to refer to trees that have an irregular crop load from year to year. In the "on" year too much fruit is set, leading to small fruit size. Excess weight in the main branches can be ...
trees, which produce fruit once every two years
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Units of time