noun / verb
coil
KOYL/kˈɔɪl/
A length wound into loops or spirals, or winding it into that shape.
The rope forms a neat coil with one loose end trailing away.

Etymology
The underlying image is “gathering together.” In English, the verb specialized in gathering rope or cable into rings, and the noun came to name the length wound into that form.
In context
the first is the length and diameter of the coil the next is the number of turns of wire and its thickness
More examples
- A coil of rope hangs from a hook.
- The snake coils around a low branch.
- The heating coil glows red inside the toaster.
Forms
coil · coils · coiled · coiling
uncoil verb — To unwind something arranged in loops.