"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.
例文
1. Why don 't you try tightening the pinion nut first？
ピニオンのナットを先にねじらないのはなぜですか。
2.He is held with his arms pinion together behind his back.
彼は両腕を逆さに切って捕らえられた。
3.The two differential- pinion gears mesh with these two side gears.
2つの遊星歯車が2つの半軸歯車に噛合している。
4.Drive pinion to stop collar clearance shall be controlled to OEM specifications.
ドライブピニオンからスラストリングまでの隙間はOEMの基準内に制御すべきである。
5.The device can be powered electrical，pneumatic，manual， pinion rotating devices.