| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| quindecennial |
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| SYLLABICATION: | quin·de·cen·ni·al |
| PRONUNCIATION: |  kw n d-s n  - l |
| ADJECTIVE: | 1. Occurring once every 15 years. 2. Lasting 15 years. | | NOUN: | A 15th anniversary. | | ETYMOLOGY: | From Latin qu ndecim, fifteen; see penkwe in Appendix I + Latin -ennium (from annus, year; see at- in Appendix I).
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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