01 a. Consisting of ten years; happening every ten years; as, a decennial period; decennial games.
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1.
Consisting of ten years; happening every ten years; as, a decennial period; decennial games.
Entry
2 senses · 2 variants
Webster, 1913
Decennial
02 n. A tenth year or tenth anniversary.
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1.
A tenth year or tenth anniversary.