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noun
A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder.
synonyms: atomic number 5, B.
is a specific kind of: chemical element, element.
is contained in: borax | kernite.
derivation: boronic | boracic, boric.
Dutch: boor, boriumPolish: B, bor
Find more on boron elsewhere: etymology - rhymes - Wikipedia.
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