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.
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