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单词	silex
释义	silex noun si·​lex ˈsī-ˌleks  : silica or a siliceous material (such as powdered tripoli) especially for use as a filler in paints or wood Example Sentences Recent Examples on the Web Pompeii's streets were paved with silex, or cooled lava stone. David Grossman, Popular Mechanics, 15 May 2019 Word History Etymology Latin silic-, silex hard stone, flint First Known Use circa 1592, in the meaning defined above Medical Definition silex noun si·​lex ˈsī-ˌleks  : silica or a siliceous material especially for use as a filler in paints or wood or as a dental material
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