0 (the day or year that is) 100 years after an important event:
centennial celebrations
1 the day or year that is 100 years after a particular event, esp. an important one; the 100th anniversary:
The sculpture commemorates Wyoming’s centennial.
The 1921 centennial was almost as spectacular as that of 1910.
Essays to commemorate the centennial of his death.
The poem enjoyed a public reading at the bridge's rededication in 1954, at the span's 75th anniversary and again at the centennial in 1983.
Around the world centennial celebrations of revolutions sparked debates among rival groups who contested the meaning of what had been established, altered or destroyed.
Home, hearth and table : a centennial review of nutritional circumstances of older people living alone.
Centennial gatherings consisting overwhelmingly of men commemorating armed men are clearly not the best way of analysing the monstrous toll that military manhood has exacted of non-combatants.
What many in the research or ethics community do not realize is that the year 2000 marked the centennial of the use of informed consent for research subjects.
Of these envelopes 98,000 bear the 2½ d. centennial stamp, while the remaining 2,000 bear the full centennial issue of six stamps.
