Definition of decennial in English:

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Pronunciation: /dɪˈsɛnɪəl/


1Recurring every ten years: the decennial census
More example sentences
  • It may not sound like much, but businesses are heavily dependent upon private firms like Claritas to make such estimates because official government numbers are released only once per decade, after each decennial census.
  • Next year, India will conduct its decennial census, but you don't have to wait until then to access demographic data about the country and its people.
  • Next to the decennial census, the Consumer Expenditure Survey is perhaps the most important survey conducted by the government to help businesses understand consumer behavior in the marketplace.
1.1Lasting for or relating to a period of ten years: decennial insurance
More example sentences
  • Overall, the 2000 census revealed a decennial increase of almost 4.6 million Hispanics in the South, bringing the total Hispanic population of twelve southern states to a little over 11 million.
  • This is evident from the decennial growth rate of the Jain population from 1981 to 1991 which shows just 4% growth while the rest of the Indian population registered a growth rate of about 20 to 24 per cent.



Pronunciation: /dɪˈsɛnɪəli/
Example sentences
  • The census, a federal mandate, was taken decennially from 1790.
  • He has repeated the feat decennially, the present volume being the fourth in the series.
  • The British census, carried out decennially since 1801, generated relatively few maps before 1970, and those few covered only a modest range of themes.


Mid 17th century: from Latin decennium 'a decade', from decennis 'of ten years' (from decem 'ten' + annus 'year'), + -al.

Words that rhyme with decennial

bicentennial, biennial, centennial, millennial, perennial, Tenniel, triennial

For editors and proofreaders

Line breaks: de¦cen|nial

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