teletype/ˈtɛlɪˌtaɪp/EtymologyFrom tele- (“far, distant, telegraph”) + type (“text, typewriter”), q.v. In the United States, chiefly understood as a genericization of the Morkrum or Teletype Corporation's branded teletype machines. Doublet of telotype.nounA telegraph that automatically prints transmitted messages in letters rather than Morse code or other symbols, typically resembling a typewriter in appearance.A telegram produced by this device.An early input/output device for mainframe computers, resembling a typewriter.verbTo use a teletype.