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Noun: treadmill  'tred,mil
  1. An exercise device consisting of an endless belt on which a person can walk or jog without changing place
  2. A mill that is powered by men or animals walking on a circular belt or climbing steps
    - treadwheel, tread-wheel
  3. A job involving drudgery and confinement
    - salt mine

Derived forms: treadmills

Type of: business, exercise device, grinder, job, line, line of work, mill, milling machinery, occupation

Encyclopedia: Treadmill