tread·​mill | \ ˈtred-ˌmil How to pronounce treadmill (audio) \

Definition of treadmill

1a : a device having an endless belt on which an individual walks or runs in place for exercise or physiological testing
b : a mill worked by an animal treading an endless belt
c : a mill worked by persons treading on steps on the periphery of a wide wheel having a horizontal axis and used formerly in prison punishment
2 : a wearisome or monotonous routine resembling continued activity on a treadmill the office treadmill

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Examples of treadmill in a Sentence

the treadmill of exhausting family schedules the treadmill of the morning commute to work
Recent Examples on the Web For those who can afford it, one alternative is investing in a treadmill or other home fitness equipment. Washington Post, "What do yarn, RVs, exercise gear and snowshoes share? They all could be hot winter buys.," 5 Oct. 2020 Unlike a more cumbersome treadmill or stationary bike, the Hydrow also blends in effortlessly with living spaces. Steph Coelho,, "Hydrow review: Can this rowing machine replace your gym membership?," 9 Sep. 2020 Please don’t suggest a gym or a treadmill -- been there, done that. Abigail Van Buren, oregonlive, "Dear Abby: Recently divorced woman finds new love with first cousin," 8 Sep. 2020 Exercise equipment and programmer Peloton Interactive is cutting the price of its entry-level bike by about 15% (while introducing a new high-end model) and debuting a new treadmill about 30% cheaper than its current offering, Bloomberg reports. Adam Lashinsky, Fortune, "The complaints of the entitled workers of Silicon Valley," 8 Sep. 2020 The machine, which features an infinite loop of stairs and demands a notoriously tough cardio workout, is as common as a treadmill or a stationary bike. Michelle Delgado, Smithsonian Magazine, "The History of the StairMaster," 31 Jan. 2020 As the leukocytes swam, researchers saw protruding proteins migrate from the front to the back the cell, as if on a treadmill (above). Lucy Hicks, Science | AAAS, "Watch white blood cells swim with microscopic ‘paddles’," 23 Sep. 2020 Workouts include yoga, cycling, dance, treadmill, HIIT, rowing, and also mindful cool-downs. Samuel Axon And Corey Gaskin, Ars Technica, "The Apple Watch Series 6 adds blood-oxygen monitoring and more," 15 Sep. 2020 The new treadmill, called Tread, will cost less than $3,000, compared with $4,295 for the current model. Mark Gurman,, "Peloton Plans Sub-$3,000 Treadmill and New High-End Bike," 4 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'treadmill.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of treadmill

1822, in the meaning defined at sense 1c

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Time Traveler for treadmill

Time Traveler

The first known use of treadmill was in 1822

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Statistics for treadmill

Last Updated

20 Oct 2020

Cite this Entry

“Treadmill.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2020.

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More Definitions for treadmill


How to pronounce treadmill (audio)

English Language Learners Definition of treadmill

: an exercise machine which has a large belt that moves around while a person walks or runs on it
: a boring or tiring activity, job, etc., in which you repeatedly do the same things


tread·​mill | \ ˈtred-ˌmil How to pronounce treadmill (audio) \

Kids Definition of treadmill

1 : a device having an endless belt on which an individual walks or runs in place for exercise
2 : a tiresome routine


tread·​mill | \ ˈtred-ˌmil How to pronounce treadmill (audio) \

Medical Definition of treadmill

: a device having an endless belt on which an individual walks or runs in place that is used for exercise and in tests of physiological functions — see stress test

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