Coil or COIL may refer to:
Science and technology
- Coil (chemistry), a tube used to cool and condense steam from a distillation
- Coil spring, used to store energy, absorb shock, or maintain a force between two surfaces
- Inductor or coil, a passive two-terminal electrical component
- Electromagnetic coil, formed when a conductor is wound around a core or form to create an inductor or electromagnet
- Induction coil, a type of electrical transformer used to produce high-voltage pulses from a low-voltage direct current supply
- Ignition coil, used in internal combustion engines to create a pulse of high voltage for a spark plug
- Induction coil, a type of electrical transformer used to produce high-voltage pulses from a low-voltage direct current supply
- Intrauterine device or coil, a contraceptive device
- Chemical oxygen iodine laser
- Coil, a binary digit or bit in some communication protocols such as Modbus
- COIL, the gene that encodes the protein coilin
Music
- Coil (band), an English experimental band
- Coil (album), a 1997 album by Toad the Wet Sprocket
- "Coil", a song by Opeth from Watershed
Fictional entities
- The Coil, a fictional organization in the G.I. Joe universe
- Magnemite or Coil, a Pokémon character
- Coil, a crime lord from the web serial Worm
People with the surname
- Liam Mac Cóil, Irish novelist
Other uses
- Coil (hieroglyph), an Egyptian hieratic hieroglyph
- Coiled basketry
- Coiling (pottery), a method of creating pottery
See also
- Loop (disambiguation)
- Spiral, a curve which emanates from a central point
- All pages with titles containing coil
- All pages with titles containing coiling