decennial


From The Collaborative International Dictionary of English v.0.48:

Decennial \De*cen"ni*al\, a. [See Decennary.]
   Consisting of ten years; happening every ten years; as, a
   decennial period; decennial games. --Hallam.
   [1913 Webster]
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From The Collaborative International Dictionary of English v.0.48:

Decennial \De*cen"ni*al\, n.
   A tenth year or tenth anniversary.
   [1913 Webster]
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