| NOUN | substance | hot-work steel, high-speed steel | an alloy steel that remains hard at a red heat |
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| Meaning | An alloy steel that remains hard at a red heat; used to make metal-cutting tools. | |
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| Synonym | high-speed steel | |
| Broader | tool steel | alloy steel that is suitable for making tools |
| Catalan | acer ràpid | |
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