ALL meanings of vicennial
vi·cen·ni·al
V v - adjective vicennial of or for 20 years. 1
- adjective vicennial occurring every 20 years. 1
- adjective vicennial occurring every 20 years 0
- adjective vicennial relating to or lasting for a period of 20 years 0
- adjective vicennial happening every twenty years 0
- adjective vicennial lasting twenty years 0