Tonophant Definition
    noun
  
 (dated) A modification of the kaleidophone, for showing the composition of acoustic vibrations. It consists of two thin slips of steel welded together, their length being adjustable by a screw socket.
Wiktionary 
Origin of Tonophant
Ancient Greek a tone + to show.
From Wiktionary
Find Similar Words
Find similar words to tonophant using the buttons below.