⊚

See also: Appendix:Variations of "="

⊚ U+229A, ⊚ CIRCLED RING OPERATOR ← ⊙ [U+2299] Mathematical Operators ⊛ → [U+229B]

Translingual

Description

Circled ring.

Symbol

⊚

1. (mathematics) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.
2. (chemistry, obsolete) calcium ("lime", Daltonian symbol)

   Technically, this should be red: ⊚. May also be typeset ⦾ or ◎, depending on which character matches the size of the other elements.