sesquicentennial

Use Sesquicentennial in a sentence

sesquicentennial

[ses-kwi-sen-ten-ee-uhl]
adjective
1.
pertaining to or marking the completion of a period of 150 years.
noun
2.
a 150th anniversary or its celebration.

Origin:
1875–80, Americanism; sesqui- + centennial

sesquicentennially, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
sesquicentennial (ˌsɛskwɪsɛnˈtɛnɪəl)
 
adj
1.  of or relating to a period of 150 years
 
n
2.  a period or cycle of 150 years
3.  a 150th anniversary or its celebration
 
sesquicen'tennially
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

sesquicentennial
"pertaining to a century and a half," 1880, from L. sesqui- "one and a half" (from semis "a half" + -que "and") + centennial (q.v.). First recorded ref. is to Baltimore's.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
And of course interest is high, now that we've begun commemorating the sesquicentennial anniversaries of the war's key events.
As the sesquicentennial begins, this article repeats two.
With a summer full of festivals ahead of us, the sesquicentennial celebrations are only beginning.
Iowans will take their presentation home to celebrate their sesquicentennial of statehood.
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