Decennial Definition
dĭ-sĕnē-əl
adjective
Lasting ten years.
Webster's New World
Happening every ten years.
Webster's New World
noun
A tenth anniversary or its commemoration.
Webster's New World
Other Word Forms of Decennial
Noun
Singular:
decennial
Plural:
decennialsOrigin of Decennial
-
From Latin decennium a period of ten years decennium
From American Heritage Dictionary of the English Language, 5th Edition
From Latin decennialis, French decem ten + ennius year- -ly
From Wiktionary
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