noun Download 🔗Share An amorphous volcanic glass formed by the hydration of obsidian. Examples : "The gardener used perlite in the potting mix to help the soil drain better. " geology material Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The lightweight insulating material and aggregate resulting from expanding perlite glass by heat. Examples : "My mom uses perlite in her garden soil to help with drainage and keep the soil from getting too heavy. " material geology building agriculture Chat with AIVocabulary GamePractice Reading