rockwool

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rockwool

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From rock + wool.

noun rockwools · rock wool

countable, uncountable Inorganic material resembling fiber, used primarily for insulation and soundproofing.
countable, uncountable A horticultural growing medium made from natural ingredients, usually including basalt rock and chalk. In 1985, rockwool was introduced to the United States as an alternative to conventional soil and other soilless mediums. Rockwool is made of thin fibers of volcanic rock or a combination of volcanic rock, limestone, and coke.

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MLA

"rockwool." Wiktionary, via Micwyn, micwyn.com/word/rockwool. Accessed 6 Nov. 2026.

APA

rockwool. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/rockwool

Chicago

"rockwool." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/rockwool.

BibTeX

@misc{rockwool_2026,
  title = {rockwool},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/rockwool},
  urldate = {2026-11-06}
}