speaking tube
Noun
Meaning
a tube for conveying the sound of a voice from one room to another
Source: WordNetAlternative names
speaking-tube
Synonyms
mouth
mouthpiece
spokesman
megaphone
bullhorn
speakerphone
speaking trumpet
voicepipe
command transmitter
Antonyms
Hypernyms
Examples
Field, 2011, pp. 38, 46 Quarstein, 2010, pp. 181, 191 The speaking tube used to communicate between the pilothouse and the turret had broken early in the action so Keeler and captain's clerk Daniel Toffey had to relay commands from Worden to Greene.
The commemorative model transmitter was a thin mirror cemented to a short aluminum speaking tube, and its receiver was a silicon solar cell and audio amplifier, both installed in a lantern light housing.