noun🔗ShareA pale brown mineral of the mica group, being a basic potassium aluminosilicate with the chemical formula KAl2(Si3Al)O10(OH,F)2; used as an electrical insulator etc."The electrical components in the old radio were insulated with thin sheets of muscovite. "mineralmaterialgeologysubstancescienceChat with AIVocabulary GamePractice Reading
