1. Noun
A mill worked by persons treading upon steps on the periphery of a wide wheel having a horizontal axis. It is used principally as a means of prison discipline. Also, a mill worked by horses, dogs, etc., treading an endless belt.
2. Noun
a job involving drudgery and confinement
Vocabulary classified under Economics
3. Noun
a mill that is powered by men or animals walking on a circular belt or climbing steps
Vocabulary classified under Engineering
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