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gen. |
Bor n |
chem. |
Bor n (Borium); Borium n (Borium) |
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boron A very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder. It occurs principally in borax and is used in hardening steel n | |
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environ. |
Bor n |
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English thesaurus |
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Boron ['bɔːrɒn, -ɑːn] abbr. | |
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abbr., scottish |
B |