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boron (n.)

non-metallic chemical element, 1812, from borax + ending abstracted unetymologically from carbon (its properties somewhat resemble those of carbon). Originally called boracium by Humphry Davy because it was drawn from boracic acid. Related: Boric.

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Definitions of boron from WordNet

boron (n.)
a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder;
Synonyms: b / atomic number "
From wordnet.princeton.edu