title: TDI
text: # TDI
  
  TDI may refer to:
  
  ## Science and technology
  
  * Tolerable daily intake, in toxicology
  * Toluene diisocyanate, an organic chemical
  * Time delay and integration, timing synchronization in an image sensor
  * Tissue Doppler imaging, a medical ultrasound technology
  * Tabbed document interface, a type of graphical user interface
  * Total dual integrality, a property of matrices in mathematical optimization
  * Transport Driver Interface, used by NT series Windows to abstract level 7 APIs into a common protocol for the Transport Protocol layer
  * Telecom data intelligence, ability to extract detailed customer profiling data
  * Trophic Diatom Index, water quality and ecological status; see Sattal
  * Turbocharged Direct Injection, a diesel engine design used in cars and light vans made by Volkswagen Group
  
  ## Organizations
  
  * Technical Diving International, a technical diving organization
  * Telecommunications for the Deaf, Inc., a nonprofit organization promoting telecommunications devices for the deaf
  * Texas Department of Insurance
  * The Dartmouth Institute for Health Policy and Clinical Practice, a subsidiary of Dartmouth College
  * Transportation Displays, Inc., a unit of Outfront Media
  
  ## Entertainment
  
  * Total Drama Island, an animated reality series
     * Total Drama Island, the 2023 reboot with the same name.
  * Tangerine Dream Independent, the record label belonging to Edgar Froese
  