mineral wool

noun

1. a woollike material for heat and sound insulation, made by blowing steam or air through molten slag or rock.

mineral wool

noun

1. Also called: rock wool. a fibrous material made by blowing steam or air through molten slag and used for packing and insulation

Word History and Origins

Origin of mineral wool¹

First recorded in 1880–85

Example Sentences

The angled roof is made out of a reflective, resin-coated metal and sits atop 9 inches of mineral wool insulation, which helps preserve the building’s interior temperatures and buffer external noise.

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From her front yard, Keisha Brown can see the unsightly berms of mineral wool, a byproduct of the coking process.

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Moreover, Rockwool’s mineral wool manufacturing process constantly releases hundreds of quintillions of tiny particles that cause respiratory inflammation, which can lead to infections and lung cancer.

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Instead, vegetables sprout in small cubes of mineral wool placed in trays of water, with water-soluble fertilizer helping them grow.

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Various non conducting substances are employed to prevent radiation, as, for example, felt, mineral wool, asbestos, and various kinds of cement.

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