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sesquicentennial - 3 dictionary results

ses⋅qui⋅cen⋅ten⋅ni⋅al

  [ses-kwi-sen-ten-ee-uhl]
Use sesquicentennial in a Sentence
–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

Related forms:
ses⋅qui⋅cen⋅ten⋅ni⋅al⋅ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To sesquicentennial
ses·qui·cen·ten·ni·al   (sěs'kwĭ-sěn-těn'ē-əl)   
adj.  Of or relating to a period of 150 years.
n.  A 150th anniversary or its celebration.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

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, © 2001 Douglas Harper
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