monotelephone (0 synonym found)

We don't have synonyms for monotelephone yet — it may be a rare, specialized, newly coined, or misspelled word.

We don't have any synonyms for monotelephone yet.

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Definition of monotelephone:

(n) : (historical) An early telephonic device that transmits only one specific tone.
Definition of monotelephone:

(n) : (historical) An early telephonic device that transmits only one specific tone.
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