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speedometer [speedometers]▼(a device that measures, and indicates the current speed of a vehicle)noun[UK: spiː.ˈdɒ.mɪ.tə(r)] [US: spi.ˈdɑː.mə.tər]
accelerometer [accelerometers]▼(instrument for measuring acceleration)noun[UK: ək.ˌse.lə.ˈrɒ.mɪ.tə(r)] [US: æk.ˌse.lə.ˈrɑː.mə.tər]
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