CirclePlus 
CirclePlus[x,y,…]
displays as .
Details

- CirclePlus[x,y,…] has no built-in meaning.
is by default interpreted as CirclePlus[x,y].
can be entered as \[CirclePlus] or
c+
.
Examples
Basic Examples (3)
A CirclePlus expression is formatted as an -ary operation with operator ⊕:
Input using the ⊕ operator is interpreted as a CirclePlus expression:
Wolfram Research (1996), CirclePlus, Wolfram Language function, https://reference.wolfram.com/language/ref/CirclePlus.html.
Text
Wolfram Research (1996), CirclePlus, Wolfram Language function, https://reference.wolfram.com/language/ref/CirclePlus.html.
CMS
Wolfram Language. 1996. "CirclePlus." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/CirclePlus.html.
APA
Wolfram Language. (1996). CirclePlus. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/CirclePlus.html