- 1[countable] an exercise machine that has a moving surface that you can walk or run on while remaining in the same place I try to do half an hour's exercise on the treadmill every morning.
- 2[singular] work or a way of life that is boring or tiring because it involves always doing the same things I'd like to escape the office treadmill.
- 3[countable] (especially in the past) a large wheel turned by the weight of people or animals walking on steps around its inside edge, and used to operate machinery
Check pronunciation: treadmill