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unreactive

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adjective un·re·ac·tive \ˌən-rē-ˈak-tiv\

Definition of unreactive

  1. :  not tending to react :  not reactive pupils unreactive to light chemically unreactive solvents

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First Known Use of unreactive

1832

Medical Dictionary

unreactive

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adjective un·re·ac·tive \-rē-ˈak-tiv\

Medical Definition of unreactive

  1. :  not reactive pupils unreactive to light an unreactive gas

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