mineral wool
noun
a woollike material for heat and sound insulation, made by blowing steam or air through molten slag or rock.
Also called
rock wool.
Origin of mineral wool
First recorded in 1880–85
Words nearby mineral wool
mineral spring,
mineral tar,
mineral water,
mineral wax,
mineral wells,
mineral wool,
mineral.,
mineralize,
mineralizer,
mineralocorticoid,
mineralogy
British Dictionary definitions for mineral wool
mineral wool
noun
a fibrous material made by blowing steam or air through molten slag and used for packing and insulation
Also called: rock wool