(engineering) A piece for receiving or communicating reciprocating motion from or to a cogwheel, consisting of a sector of a circular gear, or ring, having cogs on the periphery, or face.

With gears not engaged; idle. / Out of control; in disarray.

plural of clash gear

A change-speed gear in which the gears are changed by sliding endwise.

plural of gear change

A high-viscosity lubricant intended for use on transmissions, transfer cases, and differentials in automobiles etc.

plural of gear case

An enclosure for the bicycle chain and sprocket assemblages commonly employed by utility bicycles. It protects the chain from mud and dirt and may also contain an oil bath to keep the chain lubricated.

Alternative form of gear to.

plural of negative gearing