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Adjective: quinquennial  kwin'kwe-nee-ul
  1. Occurring once in five years, or at the end of every five years; also, lasting five years. A quinquennial event
Noun: quinquennial  kwin'kwe-nee-ul
  1. A fifth anniversary

Derived forms: quinquennials

Encyclopedia: Quinquennial

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quinquefoliate leaf
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