SPECTROPHONE
Source: 567
Spec″tro‐phone (?), n. [[Spectrum + Gr. � sound.]] An instrument constructed on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope. — Spec′tro‐phon″ic (#), a.
Source: 567
Spec″tro‐phone (?), n. [[Spectrum + Gr. � sound.]] An instrument constructed on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope. — Spec′tro‐phon″ic (#), a.