| 单词 | silica |
| 释义 | silica n. silicon dioxide, occurring as quartz etc. and as a principal constituent of sandstone and other rocks. Phrases and idioms silica gel hydrated silica in a hard granular form used as a desiccant. Derivatives siliceous adj. (also silicious). silicic adj. silicify v.tr. & intr. (-ies, -ied). silicification n. Etymology: L silex -icis flint, after alumina etc. |
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