音おん響きょう器きおんきょうきMeanings1nounsounder; telegraph sounderTechnical term for a device that converts electrical telegraph signals into audible clicks, used in early telegraphy.モールス信しん号ごうは音おん響きょう器きでカチカチという音おとに変へん換かんされた。Morse code was converted into clicking sounds by the sounder.
