decennial Hear it!

decennial definition

de·cen·nial (dē sen′ē əl)

adjective

  1. happening every ten years
  2. lasting ten years

Etymology: < L decennium (see decennium) + -al

noun

a tenth anniversary or its commemoration

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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