Also found in: Thesaurus.


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.
A 100th anniversary or a celebration of it.

[Latin centum, hundred; see dekm̥ in Indo-European roots + (bi)ennial.]

cen·ten′ni·al·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.centennially - every hundred years; once in a century; "the birthday of this city is being celebrated centennially"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Although the Arctic climate varies annually, decadally, and centennially (Walsh and Chapman, 1990; Appenzeller et al., 1998), global climate change is superimposing recent trends toward warmer temperatures and changes in snowfall (e.g., Maxwell, 1997; Bradley, 2000; Weller, 2000; P.
Full browser ?