The scientific study of waves has already been called kumatology, and in view of our familiarity with such terms as microscope, electroscope and hygroscope, there does not seem to be any objection to enlarging our vocabulary by calling a wave-detecting appliance a kumascope.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
He performed this test successfully with an electroscope, using the "condensing" technique he had invented more than a decade earlier.
"The Earliest Electromagnetic Instruments"
Robert A. Chipman
529, for a form of goldleaf electroscope shown here in figure 2, but this use of the word does not seem to have been adopted by others.
"The Earliest Electromagnetic Instruments"
Robert A. Chipman