A form of telephone by means of which speech can be picked up by a sensitive microphone and reproduced by a loudspeaker in another location in the same building.
Origin
Early 20th century. From dict- + -o- + -graph, after phonograph. Perhaps compare Dictaphone.
Definition of dictograph in US English:
dictograph
noun
historical
A form of telephone by means of which speech can be picked up by a sensitive microphone and reproduced by a loudspeaker in another location in the same building.
Origin
Early 20th century. From dict- + -o- + -graph, after phonograph. Perhaps compare Dictaphone.