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| tach·o·graph [ tákə gràf ] (plural tach·o·graphs) |
noun |
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| Definition: |
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instrument producing record of tachometer use: an instrument that produces a record of the use and readings of a tachometer, especially one in a commercial vehicle or bus recording speeds and distances traveled. In effect, a tachograph records the hours worked by a driver.
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| [Early 20th century. < Greek takhos "speed"] |
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