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noun

boron

a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder

In a sentence

Six example sentences with boron, each labelled with its topic.

  • Boron absorbs stray neutrons so well that reactor operators dissolve it in the cooling pool as a safety margin.

    Science

  • Doping silicon with boron makes the chip conduct in a controlled way, which is the whole basis of a transistor.

    Technology

  • Soil tests showed the orchard lacked boron, and a single spring application ended three seasons of hollow, cracked apples.

    Environment

  • Two teams of chemists isolated boron in 1808 within days of each other, and the argument over credit lasted years.

    History

  • In one experimental therapy doctors load tumor cells with boron and then aim a beam of neutrons at them.

    Medicine

  • Borosilicate baking dishes owe their toughness to boron, which lets them go straight from the freezer into a hot oven.

    Cooking

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