"wing joint, segment of a bird's wing," mid-15c., from Old French pignon "wing-feather, wing, pinion" (c. 1400), from Vulgar Latin *pinnionem (nominative *pinnio), augmentative of Latin pinna "wing" (see pin (n.)).
pinion (n.2)
"small wheel with teeth to gear with a larger one" (as in rack and pinion), 1650s, from French pignon "pinion" (16c.), literally "gable," from Old French pignon "pointed gable, summit," from Vulgar Latin *pinnionem, augmentative of Latin pinna "battlement, pinnacle" (see pin (n.)).
pinion (v.)
"disable by binding the arms," 1550s, older in English than literal sense "cut or bind the pinions (of a bird's wing) to prevent flying" (1570s); from pinion (n.1). Related: Pinioned.
权威例句
1. Why don't you try tightening the pinion nut first?
你为什么不先扭紧小齿轮的螺帽?
2. He is held with his arms pinion together behind his back.
他被捉住反剪著双臂.
3. The two differential - pinion gears mesh with these two side gears.
两个行星齿轮与这两个半轴齿轮相啮合.
4. Drive pinion to stop collar clearance shall be controlled to OEM specifications.
驱动器小齿轮到止推卡环的缝隙应控制在OEM的标准之内.
5. The device can be powered electrical, pneumatic, manual, pinion rotating devices.