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the 12th letter of the Roman alphabet a cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter a metric unit of capacity equal to the volume of 1 kilogram of pure water at 4 degrees centigrade and 760 mm of mercury (or approximately 1.76 pints) the cardinal number that is the product of ten and five being ten more than forty cardinal |
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