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Adjective: biennial  bI'e-nee-ul
  1. Occurring every second year
    "they met at biennial conventions";
    - biyearly
  2. (botany) having a life cycle lasting two seasons
    "parsnips and carrots are biennial plants often grown as annuals"; "a biennial life cycle";
    - two-year
Noun: biennial  bI'e-nee-ul
  1. (botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season

Derived forms: biennials

See also: periodic, periodical

Type of: flora, plant, plant life

Encyclopedia: Biennial