gyre, curlicue, ringlet, gyrate, volute, curl, scroll, whorl, loop, roll, more...

unwind, straighten, flatten, uncurl, extend

solenoid coil, ignition coil, transformer coil, inductor coil, voice coil, Teslcoil, pancake coil, helical coil, more...

secondary, primary, single, mortal, small, second, current, random, movable, long, turn

wind around,   tiny spring,   kink or curl,   something wound,   helix or spiral,   curl around,   wound around,   move in a spiral,   form a spiral,   form a helix