centennial

adj

Etymology: From Late Latin centennis (“100-year”) + -al.

1. Relating to, or associated with, the commemoration of an event that happened a hundred years before.

   “a centennial ode”

2. Happening once in a hundred years.

   “a centennial jubilee    a centennial celebration”

3. Lasting or aged a hundred years.

   “In her grand villa, half-way up the hill, / O'erlooking Florence, but retired and still; / With iron gates, that opened through long lines / Of sacred ilex and centennial pines, […]”

name

1. A city in Colorado.
2. A census-designated place in Wyoming.

noun

Etymology: From Late Latin centennis (“100-year”) + -al.

1. The hundredth anniversary of an event or happening.