thumb·​wheel ˈthəm-ˌ(h)wēl How to pronounce thumbwheel (audio)
: a control for various devices consisting of a partially exposed wheel that can be turned by moving the exposed edge with a finger

Example Sentences

Recent Examples on the Web Next, turn the thumb wheel above the bar forward to tighten the chain; turn the thumbwheel back to release tension on it. Roy Berendsohn, Popular Mechanics, 30 Nov. 2022 In Track mode, dialed in by Porsche's familiar drive mode controller, this very special 911 is the first of its kind to invite you to tweak compression and rebound of the front and rear dampers via the PASM thumbwheel. Georg Kacher, Car and Driver, 4 Oct. 2022 The programmable buttons are: two side buttons, the thumbwheel above those, the primary scroll wheel, the button south of the scroll wheel, and the button on the thumb rest. Scharon Harding, Ars Technica, 24 May 2022 That’s perfect ergonomics for right-hand drive Defenders in England, while a thumbwheel on the steering wheel allows easy volume control for us fussy Colonials. Mark Phelan, Detroit Free Press, 27 Nov. 2020 There are redundant controls for changing radio stations or tracks and a thumbwheel to adjust the volume. Tony Quiroga, Car and Driver, 16 Mar. 2020 The head-wrapping ring adjusts easily using a thumbwheel that expands and contracts the sides, similar to adjusting the length of a pair of over-ear headphones. Valentina Palladino, Ars Technica, 28 Aug. 2017 See More

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

Word History

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of thumbwheel was in 1903

Dictionary Entries Near thumbwheel

Cite this Entry

“Thumbwheel.” Dictionary, Merriam-Webster, Accessed 25 Mar. 2023.

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