HyperDic: rock_wool

English > 1 sense of the expression rock wool:
NOUNsubstancerock wool, mineral woola light fibrous material used as an insulator
English > rock wool: 1 sense > noun 1, substance
MeaningA light fibrous material used as an insulator.
Synonymmineral wool
Broaderinsulator, dielectric, nonconductorA material such as glass or porcelain with negligible electrical or thermal conductivity
Spanishlana de roca

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