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BNC: 41724 COCA: 26597
boron
noun [U] chemistry /ˈbɔːrɒn/
  1. a chemical element that combines with other elements. It is used in nuclear reactors, for making glass, and for making steel hard.
     Synonyms and related words
    Chemical elements:actinium, alkali metal, americium...
BNC: 41724 COCA: 26597
BNC: 41724 COCA: 26597

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