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boron

noun
/ˈbɔːrɒn/
/ˈbɔːrɑːn/
[uncountable]
(symbol B)
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  1. a chemical element. Boron is a solid substance used in making steel alloys and parts for nuclear reactors.
    Word Originearly 19th cent.: from borax, on the pattern of carbon (which it resembles in some respects).

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