| 单词 | pinion |
| 释义 | pinion pinion1 —pinionless, adj. —pinionlike, adj. /pin"yeuhn/, n. 1. Mach. a. a gear with a small number of teeth, esp. one engaging with a rack or larger gear. See diag. under rack1. b. a shaft or spindle cut with teeth engaging with a gear. 2. Metalworking. a gear driving a roll in a rolling mill. [1650-60; < F pignon cogwheel, MF peignon, deriv. of peigne comb, var. of pigne < L pectin- (s. of pecten) comb; see PECTEN] pinion2 /pin"yeuhn/, n. 1. the distal or terminal segment of the wing of a bird consisting of the carpus, metacarpus, and phalanges. 2. the wing of a bird. 3. a feather. 4. the flight feathers collectively. v.t. 5. to cut off the pinion of (a wing) or bind (the wings), as in order to prevent a bird from flying. 6. to disable or restrain (a bird) in such a manner. 7. to bind (a person's arms or hands) so they cannot be used. 8. to disable (someone) in such a manner; shackle. 9. to bind or hold fast, as to a thing: to be pinioned to one's bad habits. [1400-50; late ME pynyon < MF pignon wing, pinion < VL *pinnion (s. of pinnio), deriv. of L pinna feather, wing, fin] |
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