Gun

• action

  The operating part that transmits power to a mechanism; "the piano had a very stiff acti...

• cartridge ejector

  A mechanism in a firearm that ejects the empty shell case after firing.

• cartridge extractor

  A mechanism in a firearm that pulls an empty shell case out of the chamber and...

Motor Vehicle

• steering system

  A mechanism by which something is steered (especially a motor vehicle).

• drive line

  Mechanism that transmits power from the engine to the driving wheels of a motor vehi...

Also contains

• mechanical device

  Mechanism consisting of a device that works on mechanical principles.

• control

  A mechanism that controls the operation of a machine; "the speed controller on his turntable...

• gear

  A mechanism for transmitting motion for some specific purpose (as the steering gear of a v...

• rotating mechanism

  A mechanism that rotates.

• ignition

  The mechanism that ignites the fuel in an internal-combustion engine.

• cooling system

  A mechanism for keeping something cool; "the cooling was overhead fans".

• axis

  The center around which something rotates.

• steering linkage

  Mechanism consisting of a system of rods and levers connected to the front wheels...

• automaton

  A mechanism that can move automatically.

• actuator

  A mechanism that puts something into automatic action.

• radiator

  A mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is...

• carriage

  A machine part that carries something else.

• drive

  A mechanism by which force or power is transmitted in a machine; "a variable speed drive permitted...

• hydraulic system

  A mechanism operated by the resistance offered or the pressure transmitted when...

• clockwork

  Any mechanism of geared wheels that is driven by a coiled spring; resembles the works...

• transport

  A mechanism that transports magnetic tape across the read/write heads of a tape playb...

• works

  The internal mechanism of a device.

• delayed action

  A mechanism that automatically delays the release of a camera shutter for a fixed...

• lock

  A mechanism that detonates the charge of a gun.

• fail-safe

  A mechanism capable of returning to a safe state in case there is a failure or malfun...

• film advance

  A mechanism for advancing film in a camera or projector.

• homing device

  The mechanism in a guided missile that guides it toward its objective.

• whirler

  A revolving mechanism.