pinion
Rack's toothed partner
A pinion is a bird's wing, especially the outer section bearing the flight feathers.
To pinion someone is to restrain them by binding or holding their arms: Guards pinioned him against the wall.
The word also names a small gear that meshes with a larger one, as in rack-and-pinion steering—a different word that settled on the same spelling.
Frame for holding items
- cogwheelToothed rotating machine part
- sprocketToothed wheel for chains
- gear toothProjecting part on wheel
- meshingInterlocking in coordination
gearbox · worm gear · bevel · spur gear · reduction · torque · drivetrain · toothed wheel
rack
Frame for holding items
- cogwheelToothed rotating machine part
- sprocketToothed wheel for chains
- gear toothProjecting part on wheel
meshing · gearbox · worm gear · bevel · spur gear · reduction · torque · drivetrain · toothed wheel · engagement
shackle
Metal limb restraint
immobilize · secure · truss · constrain · hobble · tether · clip · disable · hold · restrict
quill
Feather used for writing
- flight featherWing plume for lift
- plumageBird's complete feather coat
- vaneWind direction indicator
barb · shaft · rachis · primary · secondary · barbule · fletching · molting · preen · keratin
- feathersfeather, feathers, plume, down feathers, quill
- moving partsgear, lever, hinge, pulley, piston
- off-roadingoff-road, 4x4s, ATVs, 4WD, four-wheel drive
- wingsbird wing, bird wings, bat wing, bat wings, butterfly wings
- fitting togetherinterlock, dovetail, mesh, fit, click
- clock partswheel, mainspring, pendulum, escapement, dial
- rack and pinionToothed bar and gear