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DAT or Dat may refer to:


  • Direct agglutination test, any test that uses whole organisms as a means of looking for serum antibody
  • Direct antiglobulin test, one of two Coombs tests
  • Dopamine transporter or dopamine active transporter, a membrane-spanning protein that pumps the neurotransmitter dopamine out of the synapse and into its vesicles for storage until later use




  • .dat, a common filename extension (typically, generic file extension for data files by various applications with no universal format)
  • Data Access Technology, an American telecommunications company
  • Dial-a-truck, or DAT Solutions - the first electronic freight posting/searching load board service, and transportation information provider, established in 1978
  • Digital Audio Tape, a signal recording and playback medium developed by Sony and introduced in 1987
  • Distributed active transformer, low voltage transistors used to generate radio frequencies
  • Double acting tanker, a type of icebreaking merchant ship designed to run ahead in open water and astern in ice
  • Dynamic Acceleration Technology (Intel Dynamic Acceleration), an Intel technology for increasing single-threaded performance on multi-core processors
  • Dynamic Address Translation, a term for translating virtual addresses to real address in a virtual memory computer system


Media and entertainment[edit]


  • Dative case, the grammatical case used to mark the indirect object of a verb
  • Desk appearance ticket, an order to appear in county court for an arraignment
  • Disaster Action Team, the local disaster response unit of the American Red Cross
  • Drug action teams, multi-agency partnerships created by the 1995 United Kingdom national drug strategy
  • Dolphin assisted therapy, swimming with, typically captive, dolphins claimed as a therapy for various conditions
  • DAT (chemotherapy) is a chemotherapy regimen that consists of Daunorubicin, Ara-C (cytarabine) and Thioguanine.