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Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Push to talk; Press to transmit.
  • Part Task Trainer (See Flight simulator at Wikipedia)
  • Partial thromboplastin time
  • Partitioning tracer test
  • Platform Terminal Transmitter
  • Postal Telephone and Telegraph
  • Professional Technical Trainer
  • Protein truncation test
  • Polytrimethylene terephthalate

Etymologies

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Examples

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