⦷

⦷ U+29B7, ⦷ CIRCLED PARALLEL ← ⦶ [U+29B6] Miscellaneous Mathematical Symbols-B ⦸ → [U+29B8]

Translingual

Symbol

⦷

1. (electricity) double socket
2. (chemistry, obsolete) sodium ("soda", Daltonian symbol)

Usage notes

At least in chemical use, the vertical bars should contact the circle. But cf. ⦶ for mathematical use vs. Daltonian/alchemical 🜕; there is no parallel dedicated Daltonian character for this.