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TDI (countable and uncountable, plural TDIs)

  1. Abbreviation of toluene diisocyanate.
  2. (toxicology) Initialism of tolerable daily intake.
    Coordinate term: TWI
    • 2005, Przemysław Mastalerz, The True Story of DDT, PCB, and Dioxin, Wydawnictwo Chemiczne, →ISBN, page 91:
      Evaluations of dioxin hazards are made on the basis of the tolerable daily intakes (TDI). Since 1980 the TDIs are established by appropriate authorities in individual countries. By definition TDIs are the maximum doses which are not harmful even when taken over the whole life.

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