| Title | Chromium |
|---|---|
| Text | Merriam-Webster's Collegiate Dictionary English Etymology chromium 1807, from Fr. chrome + element ending -ium. Oxford Advanced Learner's Dictionary-牛津双解-OALD7 chromium chro·mium / 5krEumiEm; NAmE 5krou- / noun[U] (symb Cr) a chemical element. Chromium is a hard grey metal that shines brightly when polished and is often used to cover other metals in order to prevent them from rusting .铬: chromium-plated steel 镀铬的钢 Webster's Third New International Dictionary, Unabridged chro·mi·um \ˈkrōmēəm, esp Brit -myəm\ noun (-s) Etymology: New Latin, from French chrome + New Latin -ium — more at chrome : a blue-white multivalent metallic element hard and brittle as usually prepared and resistant to corrosion that is found only in combination and principally in the mineral chromite from which it is separated by the aluminothermic, silicothermic, or electrolytic process and that is used chiefly in alloys (as ferrochromium for use in chromium steel or as nickel-chromium electrical resistance alloys) and in electroplating (as for automobile bumpers and trim and for cutting tools) — symbol Cr; see element table
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