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lustra |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lustrum \Lus"trum\, n.; pl E. {Lustrums}, L. {Lustra}. [L. Cf 2d & 3d {Luster}.] A lustration or purification, especially the purification of the whole Roman people, which was made by the censors once in five years. Hence: A period of five years.
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