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sonometer

Definitions

  • WordNet 3.6
    • n sonometer an instrument used to measure the sensitivity of hearing
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Webster's Revised Unabridged Dictionary
    • Sonometer (Physiol) An instrument for exhibiting the transverse vibrations of cords, and ascertaining the relations between musical notes. It consists of a cord stretched by weight along a box, and divided into different lengths at pleasure by a bridge, the place of which is determined by a scale on the face of the box.
    • Sonometer An instrument for testing the hearing capacity.
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Century Dictionary and Cyclopedia
    • n sonometer An apparatus used in experimenting upon musical strings or wires, and in illustrating the laws which govern their transverse vibrations. It consists of a sounding-board upon suitable supports, so arranged that two strings may be stretched above it side by side; their tension and their lengths may be varied at will by changing the position of the bridges; the strings are usually set in vibration by a bow. With this apparatus it may be proved experimentally that the number of vibrations in the musical note given by a string varies inversely as its length and diameter, directly as the square root of the tension, and inversely as the square root of its density.
    • n sonometer An instrument, consisting of a small bell fixed on a table, for testing the effects of treatment for deafness.
    • n sonometer In electricity, an apparatus for testing metals by means of an induction-coil, with which is associated a telephone. See induction-balance.
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Chambers's Twentieth Century Dictionary
    • n Sonometer sō-nom′e-tėr an instrument for measuring sounds or their intervals by means of a sounding-board with strings stretched above it, movable bridges, and weights for varying the tension.
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Etymology

Webster's Revised Unabridged Dictionary
L. sonus, a sound + -meter,
Chambers's Twentieth Century Dictionary
L. sonus, a sound, Gr. metron, a measure.