tachograph

Definitions

  • WordNet 3.6
    • n tachograph a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle
    • ***
Webster's Revised Unabridged Dictionary
    • n Tachograph A recording or registering tachometer; also, its autographic record.
    • ***
Century Dictionary and Cyclopedia
    • n tachograph A recording tachometer applied to shafting or wheels to register rotation-speed; a speed-indicator. Also tacheograph.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. ta`chos speed + -graph,