dictograph

listen to the pronunciation of dictograph
Englisch - Türkisch
Englisch - Englisch
{i} telephonic device with highly sensitive transmitter (often used in eavesdropping)
Much use has been made of it for overhearing, or for recording, conversations for the purpose of obtaining evidence for use in litigation
A telephonic instrument for office or other similar use, having a sound-magnifying device enabling the ordinary mouthpiece to be dispensed with
dictograph
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