speaking tube
noun
: a pipe through which conversation may be conducted (as between different parts of a building)
Examples of speaking tube in a Sentence
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In 1819, a special acoustic chair was designed for the king of Portugal, featuring arms ornately carved to look like open lion mouths, which helped transmit sound to the king’s ear via speaking tubes.
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IEEE Spectrum, 7 Jan. 2026
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IEEE Spectrum, 7 Jan. 2026
Cite this Entry
“Speaking tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/speaking%20tube. Accessed 4 Feb. 2026.
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