You searched for: “telegraph code
telegraph(ic) code
A system of symbols used for transmitting telegraph messages; such as, the Morse code; where each character is represented by a group of long and short electrical pulses or pulses of opposing polarities, or by time gaps of equal length in which a signal is either present or absent.
This entry is located in the following unit: tele-, tel-, telo-, -telic, -telical (page 3)