English > insulator: 1 sense > noun 1, substance| Meaning | A material such as glass or porcelain with negligible electrical or thermal conductivity. |
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| Synonyms | dielectric, nonconductor |
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| Narrower | bushing | An insulating liner in an opening through which conductors / conductors pass |
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| glass wool | glass fibers spun and massed into bundles resembling wool |
| mineral wool, rock wool | A light fibrous material used as an insulator |
| Broader | material, stuff | The tangible / tangible substance that goes into the makeup of a physical object |
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| Opposite | conductor | A substance that readily conducts e.g. electricity and heat |
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| Spanish | aislador, aislante, dieléctrico, no conductor |
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| Catalan | aïllador, aïllant, dielèctric, isolador, isolant, no conductor |
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| Verbs | insulate | protect from heat, cold, or noise by surrounding with insulating material |
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