单词 | pinion |
释义 | pinion (once / 1885 pages) 1nv 2n Many cars use rack-and-pinion steering, in which the steering wheel turns a small-toothed pinion gear, which engages the larger rack that turns the car's wheels. Pinions make steering easy and smooth. Pinion, in the sense of a gear, comes from Middle French peignon, which comes in turn from the Latin noun pecten, "comb," reflecting the toothed appearance of a pinion. WORD FAMILYpinion: pinioned, pinioning, pinions USAGE EXAMPLESWHY: The steering rack and pinion assembly can have an improper amount of grease and result in a loss of steering control and crash hazard. Seattle Times(Nov 25, 2016) Creating life from pinions and pivots and tiny screws may be the easy part. The Guardian(Oct 19, 2016) Later in the quarter, Bradley Pinion shanked a punt for 26 yards, giving Dallas a short field. Washington Times(Oct 02, 2016) 1 1n wing of a bird Syn|Hyper pennon wing a movable organ for flying (one of a pair) 2n any of the larger wing or tail feathers of a bird Syn|Hypo|Hyper flight feather, quill, quill feather primary, primary feather, primary quill one of the main flight feathers projecting along the outer edge of a bird's wing tail featherfeather growing from the tail (uropygium) of a bird sickle featherone of the long curved tail feathers of a rooster feather, plumage, plume the light horny waterproof structure forming the external covering of birds 3v cut the wings off (of birds) Hyper disable, disenable, incapacitate make unable to perform a certain action 4v bind the arms of 2Syn|Hyper shackle confine, hold, restrain to close within bounds, limit or hold back from movement n a gear with a small number of teeth designed to mesh with a larger wheel or rack Hypo|Hyper lantern pinion, lantern wheel a small pinion having cylindrical bars instead of teeth, used chiefly in inexpensive clocks cogwheel, gear, gear wheel, geared wheel a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion |
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