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English definition of “inert”

inert

adjective (CHEMICAL)    /ɪˈnɜːt/ US  /-ˈnɝːt/ specialized
Inert substances do not produce a chemical reaction when another substance is added: inert gasesTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of inert adjective (CHEMICAL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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