phonometer

American  

[fuh-nom-i-ter, foh-] / fəˈnɒm ɪ tər, foʊ- /

noun

1. a device for measuring the intensity of a sound.

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phonometer British  

/ fəˈnɒmɪtə, ˌfəʊnəˈmɛtrɪk /

noun

1. an apparatus that measures the intensity of sound, esp one calibrated in phons

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Other Word Forms

• phonometric adjective
• phonometry noun

Etymology

Origin of phonometer

First recorded in 1815–25; phono- + -meter

Example Sentences

Some of Edison's inventions have a character at present of little more than picturesque playfulness, such as the Phonograph, perhaps the most remarkable of these minor inventions; the Aerophone, by which sounds are amplified without loss of distinctness; the Megaphone, an instrument which, inserted in the ear, so magnifies sounds that faint whispers may be heard a thousand feet; the Phonometer, for measuring the force of the soundwaves caused by the human voice; the Microtasimeter, for measuring small variations in temperature.

From Project Gutenberg

So it is only necessary to twist the phonometer about on its pivot until the sound is received most loudly in the horns and the band of light is greatest.

From Project Gutenberg

Banging and pounding, we forged ahead, straining our eyes to watch the road, the distance, the time, and the phonometer all at once.

From Project Gutenberg

The sound enters the two horns of the phonometer, is focused at the neck, and strikes on a delicate diaphragm, behind which is a needle.

From Project Gutenberg

Without the phonometer to warn us, it must inevitably have met us and blocked our escape over the road ahead.

From Project Gutenberg