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glass wool
noun
- spun glass similar to wool, used for insulation, filters, etc.
glass wool
noun
- fine spun glass massed into a wool-like bulk, used in insulation, filtering, etc
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Word History and Origins
Origin of glass wool1
First recorded in 1875–80
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Example Sentences
The dark mass was extracted with hot concentrated HCl, the acid extracts filtered through glass wool using a hot water funnel.
From Project Gutenberg
A kind of glass wool is produced by drawing out to a capillary thread two glass rods of different degrees of hardness.
From Project Gutenberg
Inside the glass wool was a layer of material serving exactly the function of the coating of a bulletproof gasoline tank.
From Project Gutenberg
The flask was then allowed to cool, the entering air being filtered through a plug of glass wool or asbestos.
From Project Gutenberg
Glass wool serves to hold the calcium chloride and iodine in place.
From Project Gutenberg
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