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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 (Shorthand for the word DATA. Usually, a filename file reference extension for information reference files used by various programs with a variety of programming styles written in the BASIC programming language.)
  • 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


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