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quindecennial - 2 dictionary results

quin⋅de⋅cen⋅ni⋅al

  [kwin-di-sen-ee-uhl]
Use quindecennial in a Sentence
–adjective
1. of or pertaining to a period of 15 years or the 15th occurrence of a series, as an anniversary.
–noun
2. a 15th anniversary.
Origin:
< L quīndec(im) fifteen + -ennial (as in decennial )
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To quindecennial
quin·de·cen·ni·al   (kwĭn'dĭ-sěn'ē-əl)   
adj.  
  1. Occurring once every 15 years.
  2. Lasting 15 years.
n.  A 15th anniversary.

[From Latin quīndecim, fifteen; see penkwe in Indo-European roots + Latin -ennium (from annus, year; see at- in Indo-European roots).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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