“phonometer”

We have one entry that includes the term phonometer.

fall phonometer

noun

: an instrument used in experimental psychology designed to furnish sounds whose intensities are in known ratios by permitting balls to drop from different heights upon plates of metal or slate

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  • any of a genus helianthus especially h annuus of new world composite plants with large yellow rayed flower heads bearing edible seeds that yield an edible oil
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