Chemistry. A substance used to increase the rate of a chemical reaction or process.
| 单词 | θ67954 |
| 释义 | the world > matter > chemistry > chemical reactions or processes > [noun] > processes or substances affecting reactions > catalysis > catalyst (11) accelerator1864 Chemistry. A substance used to increase the rate of a chemical reaction or process. catalysator1893 a catalyst. catalysor1901 catalyst1902 A substance which when present in small amounts increases the rate of a chemical reaction or process but which is chemically unchanged by the… catalyser1904 Subcategories:— supporting medium for (2) — substance which destroys or reduces activity of (1) — a region of a solid surface possessing (1) — named catalysts (2) |
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