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so·di·um

sodium

 
pronunciation:
so di m
features:
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part of speech: noun
definition: a soft, silver-white metal that is a chemical element. It combines easily with other elements and is found in nature only in compounds with other elements. Sodium reacts with chlorine to form the salt we eat in foods. (symbol: Na)
Too much sodium in a person's diet can be bad for health.
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  element, milk