adjective sep·ten·ni·al \sep-ˈte-nē-əl\

Definition of septennial

  1. 1 :  occurring or being done every seven years

  2. 2 :  consisting of or lasting for seven years


play \-ə-lē\ adverb

Origin and Etymology of septennial

Late Latin septennium period of seven years, from Latin septem + -ennium (as in biennium)

First Known Use: 1640

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