dictograph

About 0.01 uses per million words.

Meaning

1. noun A telephonic instrument for office or similar use, having a sound-magnifying device enabling the ordinary mouthpiece to be dispensed with. It was sometimes used for covertly recording conversations.

Similar words

motograph diagraph phonograph telegraphophone telegraphone phonautograph idiograph logograph articulograph dactylograph

Often followed by

products prods in company is