quinquennial

(kwin kwenē əl, kwiŋ-)

adjective

  1. happening every five years
  2. lasting five years

Origin: < L quinquennis, of five years < quinque, five + annus, year + -al

Related Forms:

See quinquennial in American Heritage Dictionary 4

adjective
  1. Happening once every five years.
  2. Lasting for five years.
noun
  1. A fifth anniversary.
  2. A period of five years.

Related Forms:

  • quin·quenˈni·al·ly adverb

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