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English definition of “metalloid”

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metalloid

noun [C] uk   /ˈmet.əl.ɔɪd/ us    /ˈmet̬-/ specialized
a chemical element with some of the properties of a metal and some of a non-metal, for example silicon and arsenic
(Definition of metalloid from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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