tonophant

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• Tonophant — Ton o*phant (t[=o]n [ o]*fant), n. [Gr. to nos a tone + fai nein to show.] (Physics.) A modification of the kaleidophon, for showing composition of acoustic vibrations. It consists of two thin slips of steel welded together, their length being… …   The Collaborative International Dictionary of English

• tonophant — An instrument for visualizing sound waves. [tono + G. phaino, to appear] …   Medical dictionary