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| quindecennial [ kwíndi sénni əl ] |
adjective |
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| Definition: |
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1. at 15-year intervals: happening once every 15 years
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2. with 15-year duration: lasting for 15 years
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noun (plural quindecennials) |
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| Definition: |
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anniversary: a 15th anniversary
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| [Late 20th century. < Latin quindecim 'fifteen', after centennial] |
