Found 2 items, similar to Speaking tube.
English → English (WordNet)
Definition: speaking tube
speaking tube
n : a tube for conveying the sound of a voice from one room to
another
English → English (gcide)
Definition: Speaking tube
Speaking
\Speak"ing\, a.
1. Uttering speech; used for conveying speech; as, man is a
speaking animal; a speaking tube.
[1913 Webster]
2. Seeming to be capable of speech; hence, lifelike; as, a
speaking likeness.
[1913 Webster]
A speaking acquaintance, a slight acquaintance with a
person, or one which merely permits the exchange of
salutations and remarks on indifferent subjects.
Speaking trumpet, an instrument somewhat resembling a
trumpet, by which the sound of the human voice may be so
intensified as to be conveyed to a great distance.
Speaking tube, a tube for conveying speech, especially from
one room to another at a distance.
To be on speaking terms, to be slightly acquainted.
[1913 Webster]