cen•ten•ni•alPronunciation: (sen-ten'ē-ul), [key]
pertaining to, or marking the completion of, a period of 100 years.
pertaining to a 100th anniversary.
lasting 100 years.
100 years old.
a 100th anniversary or its celebration; centenary.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.