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English definition of “metalloid”

metalloid

noun [C]     /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 arsenicChemical elements
(Definition of metalloid noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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