Welcome to the 1520 Perfect Dictionary
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| Heavy water | |
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| HEAVY WATER Definition: (chemistry) Water in which hydrogen is replaced by deuterium, used in nuclear reactions. __________________________________ See perfect water (1). See perfect form (1). _____ See perfect element (1). See perfect feature (1). _____ See perfect drinking water. _____ See perfect nuclear reactor. | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |