| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ver•mic•u•lite (vər mik′yə līt′),USA pronunciation n. - Mineralogyany of a group of platy minerals, hydrous silicates of aluminum, magnesium, and iron, that expand markedly on being heated: used in the expanded state for heat insulation and as a plant growth medium.
- vermicul(ar) + -ite1 1815–25, American.
Collins Concise English Dictionary © HarperCollins Publishers:: vermiculite /vɜːˈmɪkjʊˌlaɪt/ n - any of a group of micaceous minerals consisting mainly of hydrated silicate of magnesium, aluminium, and iron: on heating they expand and exfoliate and in this form are used in heat and sound insulation, fireproofing, and as a bedding medium for young plants
Etymology: 19th Century: from vermicul( ar) + -ite1 |