Definition of decennial in English:



  • 1Recurring every ten years.

    ‘the decennial census’
    • ‘The story is based on data that recorded whether young people were living with one or both of their parents at the time of each of the decennial censuses of the U.S., from 1880 through 1990.’
    • ‘The decennial survey, which Americans were supposed to fill out and return by mid April, doesn't ask about sexual orientation, but it does allow couples to identify as unmarried partners.’
    • ‘However, the pace of social and economic change means there are ever greater challenges to established models of data collection such as decennial censuses.’
    • ‘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.’
    • ‘It is the year for the Floriade 2002, the world-renowned decennial flower exposition.’
    • ‘This data, while not an exact picture of conditions in 2005, still provides a more accurate representation of the current situation facing children than does the decennial census data from 2000.’
    • ‘As the latest decennial Census revealed, American youngsters are far more diverse racially and ethnically than the adult population.’
    • ‘The Communion recognizes the leadership of the Archbishop of Canterbury, who presides over the decennial Lambeth Conference, the principal meeting of Anglican bishops.’
    • ‘Since then, results of the decennial census have been used - no later than the following year - to ensure that voting districts are created using the most current population statistics.’
    • ‘Though the census methods were crude by modern standards, the institution of decennial censuses offered a systematic basis for estimates and one which Rickman helped to refine and improve.’
    • ‘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.’
    • ‘Nalamdana, a charitable trust, screened a short film depicting various projects taken up by the street theatre group during its decennial celebrations held recently.’
    • ‘He said the results from the decennial census will be crucial in Telecom's strategic planning and provision of telecommunications services and infrastructure.’
    • ‘The Great Exhibition coincided with the decennial census, which was begun in 1801-in itself a symbol of the desire to measure, to count, and classify which became so characteristic a feature of Victorian society.’
    • ‘The decennial population census originated in the 1787 federal Constitution as a mechanism for determining each state's political representation in the House of Representatives and electoral college.’
    • ‘We know that the decennial Lambeth Conference, which takes its name from the Archbishop of Canterbury's London residence, can no longer fit in the palace and so meets at the University of Kent.’
    • ‘On their decennial European vacations, Mr. and Mrs. Fine visit the summer homes of great composers.’
    • ‘In 2001, for the first time, the decennial UK census asked the entire population about caring responsibilities and general self rated health.’
    • ‘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.’
    • ‘The winning tender for the contract to carry out the decennial National Housing Survey cost €2.86 million, The Sunday Business Post has learned.’
    1. 1.1 Lasting for or relating to a period of ten years.
      ‘decennial insurance’
      • ‘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.’


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