treadmilltread‧mill /ˈtrɛdmɪl/ noun 
1
[countable] a piece of exercise equipment that has a large belt around a set of wheels, that you can walk or run on while staying in the same place2[singular] work or a way of life that seems very boring because you always have to do the same things
1 [countable] a piece of exercise equipment that has a large belt around a set of wheels, that you can walk or run on while staying in the same place2[singular] work or a way of life that seems very boring because you always have to do the same things
