cen·ten·ni·al (s n-tn  - l)adj. 1. Of or relating to an age or period of 100 years. 2. Occurring once every 100 years: a centennial commemoration. 3. Of or relating to a 100th anniversary. n. A 100th anniversary or a celebration of it. [Latin centum, hundred; see dek  in Indo-European roots + (bi)ennial.]cen·ten ni·al·ly adv. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Adv. | 1. | centennially - every hundred years; once in a century; "the birthday of this city is being celebrated centennially" |
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