a brand name for a telephonic device with a highly sensitive transmitter obviating the necessity of a mouthpiece: used for listening to conversations secretly or obtaining a record of them.
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How to use Dictograph in a sentence
She recalled what a strain it had been on her nerves the day she watched on the roof while Dean installed the Dictograph.The Apartment Next Door | William Andrew Johnston
He recalled that Jane Strong over the Dictograph had heard old Hoff speak of something that he called the "wonder-worker."The Apartment Next Door | William Andrew Johnston
"When they close up for the night, Murphy, Gallant and I will go in and rig up the Dictograph," he said.
Brennan assembled the Dictograph rapidly, attaching to it three head-pieces with receivers clamping over the ears.
So delicately was the Dictograph adjusted that John heard Cummings draw his breath sharply.
British Dictionary definitions for Dictograph
trademark a telephonic instrument for secretly monitoring or recording conversations by means of a small, sensitive, and often concealed microphone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012