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quindecennial

[ kwin-di-sen-ee-uhl ]

adjective

  1. of or relating to a period of 15 years or the 15th occurrence of a series, as an anniversary.


noun

  1. a 15th anniversary.

quindecennial

/ ˌkwɪndɪˈsɛnɪəl /

adjective

  1. occurring once every 15 years or over a period of 15 years


noun

  1. a 15th anniversary

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Word History and Origins

Origin of quindecennial1

< Latin quīndec ( im ) fifteen + -ennial (as in decennial )

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Word History and Origins

Origin of quindecennial1

C20: from Latin quindecim fifteen + annus year, on the model of biennial

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