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decennial

Syllabification: (de·cen·ni·al)
Pronunciation: /diˈsenēəl/

Definition of decennial

adjective

  • recurring every ten years:the decennial census
  • lasting for or relating to a period of ten years:decennial insurance

Derivatives

decennially

adverb

Origin:

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

Spell decennial with a double n.

decennial in other Oxford dictionaries

Definition of decennial in the British & World English dictionary

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