telegraph_key
1. [ noun ] (computer science) key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed
Related terms: key
Similar spelling:   telegraphy
  telegraph_wire
  telegraph_pole
  telegraph_line
  telegraphese
  telegraphic
  telegrapher
  telegraph_post
  telegraph_form
  telegraphist
  telegraphically
  telegraph_plant