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rock wool

Origin of rock wool
1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rock wool
  • Others use slag for rock wool or old newspaper for cellulose insulation.
  • rock wool is produced from natural rocks, such as basalt and diabase.
  • The old rock wool warehouse facility received major irreparable damage.
British Dictionary definitions for rock wool

rock wool

another name for mineral 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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Difficulty index for rock wool

Few English speakers likely know this word

Word Value for rock

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