Definition of septennial
1 : occurring or being done every seven years
2 : consisting of or lasting for seven years
septenniallyplay \-ə-lē\ adverb
Recent Examples of septennial from the Web
The former English schoolkids, tracked by this septennial doc since age 7, are now using the medium to promote their interests.
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Origin and Etymology of septennial
Late Latin septennium period of seven years, from Latin septem + -ennium (as in biennium)
First Known Use: 1640See Words from the same year
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