1. Lasting or living for two years. 2. Happening every second year. 3.Botany Having a life cycle that normally takes two growing seasons to complete.
NOUN:
1. An event that occurs every two years. 2.Botanya. A plant that normally requires two seasons to complete its life cycle, growing usually as a rosette in the first season and producing flowers and fruits and then dying in the second season. b. A perennial plant, such as the English daisy, cultivated as a biennial.
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