Coil - Wikipedia
https://en.wikipedia.org/wiki/Coil
WEBCoil (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.
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