Meaning of overcoil
Pronunciation: (ō'vur-koil"), [key]
— n. Horol.
- a fixed end of a spiral hairspring, consisting of an upwardly and inwardly bent continuation of the outermost coil of the spring: used to offset the asymmetry of the common spiral spring when tight, which impairs isochronism.
- a hairspring having such a fixed end.