METALLOID
\mˈɛtə͡lˌɔ͡ɪd], \mˈɛtəlˌɔɪd], \m_ˈɛ_t_əl_ˌɔɪ_d]\
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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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Formerly, the metallic base of a fixed alkali, or alkaline earth; - applied by Sir H. Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.
By Oddity Software
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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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Formerly, the metallic base of a fixed alkali, or alkaline earth; - applied by Sir H. Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.
By Noah Webster.
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That which has a form or appearance like a metal: usually, any of the non-metallic inflammable bodies, as sulphur, phosphorus, etc.
By Daniel Lyons
By Willam Alexander Newman Dorland