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mag·ne·si·um
 magnesium
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- pronunciation:
- maeg
ni
zi
 m
[or]
maeg
ni
zhm
- features:
- Word Combinations (noun), Word Explorer
| part of speech: |
noun |
| definition: |
a highly reactive chemical element of the alkaline-earth group that has twelve protons in each nucleus and that occurs naturally only in compounds, but that can be isolated as a divalent ion essential in plant and animal nutrition, or as alight, ductile, silver-white solid that bursts into a bright flame when heated above room temperature, used for flares, fireworks, and the like. (symbol: Mg)
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