| 单词 | vermiculite |
| 释义 | vermiculite /veuhr mik"yeuh luyt'/, n. any 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. [1815-25, Amer.; VERMICUL(AR) + -ITE1] |
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