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Word |
# |
Date |
Definition |
Site |
Level |
| iron |
1 |
today |
a chemical element that has twenty-six protons in each nucleus and that occurs naturally in a variety of compounds such as minerals important in the earth's crust as well as the biologically essential cytochromes and hemoglobin, and that can be isolated in pure form as a silver-gray, dense, malleable metal that rusts rapidly in air, can be easily magnetized, and is widely used in a variety of alloys. (symbol: Fe) [16 definitions] |
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Adv. |