单词	thumbwheel
释义	thumbwheel noun thumb·​wheel ˈthəm-ˌ(h)wēl  : 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 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 Word History First Known Use 1903, in the meaning defined above
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