METALLOID • DICTIONARY ONE.COM • Definition of Metalloid

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noun

Metalloid n.

Formerly, the metallic base of a fixed alkali, or alkaline earth; applied by Sir Humphrey Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.

Now, one of several elementary substances which in the free state are unlike metals, and whose compounds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids.

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Etymology of 'Metalloid'

Collaborative International Dictionary of English 0.48

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Words linked to "Metalloid" : nonmetal