Carborundum
n.
silicon carbide used as an abrasive, (reg. trademark U.S. June 21, 1892, by Carborundum Co. of Monongahela City, Pa.), from carbon + corundum.
| 词汇 | Carborundum |
| 词根词缀 | Online Etymology Dictionary Carborundum n. silicon carbide used as an abrasive, (reg. trademark U.S. June 21, 1892, by Carborundum Co. of Monongahela City, Pa.), from carbon + corundum. |
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