Dictograph

[ dik-tuh-graf, -grahf ]

Trademark.

1. 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.

Dictograph

/ ˈdɪktəˌɡrɑːf; -ˌɡræf /

noun

1. a telephonic instrument for secretly monitoring or recording conversations by means of a small, sensitive, and often concealed microphone

Example Sentences

She recalled what a strain it had been on her nerves the day she watched on the roof while Dean installed the dictograph.

From Project Gutenberg

He recalled that Jane Strong over the dictograph had heard old Hoff speak of something that he called the "wonder-worker."

From Project Gutenberg

"When they close up for the night, Murphy, Gallant and I will go in and rig up the dictograph," he said.

From Project Gutenberg

Brennan assembled the dictograph rapidly, attaching to it three head-pieces with receivers clamping over the ears.

From Project Gutenberg

So delicately was the dictograph adjusted that John heard Cummings draw his breath sharply.

From Project Gutenberg