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| tes·ser·a [ téssərə ] (plural tes·ser·ae [ téssə r ]) |
noun |
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1. mosaic piece: a small square of stone, tile, or glass used to make a mosaic
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2. die: a piece of bone or wood that was used in ancient Greece and Rome as a die, tally, or ticket
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| [Mid-17th century. Via Latin< Greek tesseres, variant of tessares "four"; from the sides of a square] |
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  tes·ser·al adjective |
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