noun pho·no·deik \ˈfōnəˌdīk\

Definition of phonodeik



  1. :  an instrument for making photographic records of sound waves in air by means of a tiny mirror that is oscillated in a rotary manner by sound waves agitating a glass diaphragm and that by its reflections of a ray of light traces corresponding paths on a moving film

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Origin and Etymology of phonodeik

phon- + -deik (from Greek deiknynai to show) — more at diction

Seen and Heard

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quaintly unconventional or refined

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