vicennial

• Adjectif décrivant ce qui se produit tous les vingt ans ou dure vingt ans. Rarement utilisé en anglais moderne.

An adjective describing something that occurs every twenty years, or lasts for a period of twenty years. It is rarely used in modern English.

1. Occurring every twenty yearsC2formal

   Happening or recurring once every twenty years.

   Qui a lieu tous les vingt ans

   • The society holds a vicennial celebration for its founding members.
   • The vicennial census provides long-term demographic data.
   • They planned a vicennial reunion for the graduating class.