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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 bi·en·ni·al /(ˌ)baɪˈɛniəl/

From: Webster's Revised Unabridged Dictionary (1913)

 Bi·en·ni·al a.
 1. Happening, or taking place, once in two years; as, a biennial election.
 2. Bot. Continuing for two years, and then perishing, as plants which form roots and leaves the first year, and produce fruit the second.

From: Webster's Revised Unabridged Dictionary (1913)

 Bi·en·ni·al, n.
 1. Something which takes place or appears once in two years; esp. a biennial examination.
 2. Bot. A plant which exists or lasts for two years.

From: WordNet (r) 2.0

      adj 1: occurring every second year; "they met at biennial
             conventions" [syn: biyearly]
      2: having a life cycle lasting two seasons; "a biennial life
         cycle"; "parsnips and carrots are biennial plants often
         grown as annuals" [syn: two-year] [ant: perennial, annual]
      n : 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