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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. a fibrous material made by blowing steam or air through molten slag and used for packing and insulation Also calledrock wool
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of mineral wool1

First recorded in 1880–85
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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.

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

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.

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

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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