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nouna trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
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Definition that contains boron
- davy English chemist who was a pioneer in electrochemistry and who used it to isolate elements sodium and potassium and barium and boron and calcium and magnesium and chlorine (1778-1829)
- borax an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent
- boric of or relating to or derived from or containing boron
- boron chamber an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
- gay-lussac French chemist and physicist who first isolated boron and who formulated the law describing the behavior of gases under constant pressure (1778-1850)
- fluoroboric acid an acid of fluorine and boron
- sir humphrey davy English chemist who was a pioneer in electrochemistry and who used it to isolate elements sodium and potassium and barium and boron and calcium and magnesium and chlorine (1778-1829)
- kernite a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron
- boracic of or relating to or derived from or containing boron
- humphrey davy English chemist who was a pioneer in electrochemistry and who used it to isolate elements sodium and potassium and barium and boron and calcium and magnesium and chlorine (1778-1829)