| 单词 | quinquagenary |
| 释义 | quinquagenarian /kwin-kwə-ji-nāˈri-ən/nounA person who is fifty years old, or between fifty and sixty (also adjective) ORIGIN: L quinquāgēnārius relating to fifty, from quinquāgintā fifty quinquagenary /-jēˈnə-ri/ adjective (rare)
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