biennial

/baɪˈɛnɪəl/

IPA: /B AY0 EH1 N IY0 AH0 L/

noun
  1. 1

    A plant that requires two years to complete its life-cycle, germinating and growing in its first year, then producing its flowers and fruit in its second year, after which it usually dies

  2. 2

    An event that happens every two years

adjective
  1. 1

    Happening every two years.

  2. 2

    Lasting for two years.

Source: https://en.wiktionary.org/wiki/biennial