rockwool (English, noun)
expansion: rockwool (countable and uncountable, plural rockwools)
Senses:
glosses: Inorganic material resembling fiber, used primarily for insulation and soundproofing.
tags: countable
uncountable
glosses: A horticultural growing medium made from natural ingredients, usually including basalt rock and chalk.
tags: countable
uncountable
Forms:
form: rockwools
tags: plural
form: rock wool
tags: alternative