Ratchet

A ratchet may refer to:

• ratchet (device), a mechanical device for controlling rotational motion
• socket wrench, a tool that makes use of the above mechanical device
• ratchet (instrument), a music instrument
• Ratchet (Ratchet & Clank), a fictional character from the Ratchet & Clank video game series
• Ratchet (Robots), a fictional character and the villain in the animation film Robots
• Ratchet (Transformers), a Transformers toy and fictional character
• Ratchet (Warcraft), a town in online game World of Warcraft
• Ratchet, a fictional character from the ecological cartoon series Widget the World Watcher
• Nurse Ratched, a fictional character from the novel and film One Flew Over the Cuckoo\'s Nest also Nurse Ratchet from an episode of the animated series Futurama
• a slang term for a handgun; notably in rap music and originating in New York City
• a slang term for a Folding Knife or Pocket knife; a favourite of the Rudeboys of 60s Jamaica.
• the hounds of Annwn in the Cŵn Annwn in Brythonic mythology
• a mechanism in corporate finance
• Rachetting is a constitutive behavior of many materials
• Quantum stirring, ratchets, and pumping, in physics
• Brownian ratchet, in physics
• Muller\'s ratchet, in genetics

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