- a musical keyboard instrument operating by alternating currents of electricity which, on impulse from the keyboard, produce music at a distant point via telephone lines.
Origin of telharmonium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for telharmonium
Just why the telharmonium has not made good its promises of popularity I do not know.Mark Twain, A Biography, 1835-1910, Complete
Albert Bigelow Paine