the.com/bobbin
A tiny spool with one job: hold thread and refuse to tangle, mostly.
means A small cylinder or spool that holds thread, yarn, or wire, especially inside sewing machines and textile equipment.
from From French bobine, likely echoing the soft bob-bob of thread winding round and round, possibly with a nod to bauble — a small round thing.
Lace historyBobbin lace was made by braiding many weighted spools.
Sewing machineIt feeds the underside thread, looping with the needle above.
Beyond fabricCoils of wire in electronics wind onto bobbins too.