noun (plural septennia /-ˈtenēə/ or septenniums)• rare
- A specified period of seven years.More example sentences
- This septennium must designate something peculiar and different from the time following.
- In Wurtemburg the fall has been somewhat less striking, the mortality rates for the two septennia and for the year 1894 being 199, 107, and 104 respectively.
mid 19th century: from late Latin, from Latin septem 'seven' + annus 'year'.
More definitions of septenniumDefinition of septennium in:
- The British & World English dictionary