Ratchet
From Wikipedia, the free encyclopedia
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
- A part of some forceps, to fix the blades of the forceps, such as in surgical forceps
- 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, 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 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 (also called Cliquet option)
- Quantum stirring, ratchets, and pumping, in physics
- Brownian ratchet, in physics
- Muller's ratchet, in genetics
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