⊖
Symbol  Format  Data 

⊖  Code Point 
U+2296 
TeX 
\ominus 

SVG 
The circled minus symbol is used in math to express symmetric difference.
Symbol  Format  Data 

⊖  Code Point 
U+2296 
TeX 
\ominus 

SVG 
The circled minus symbol is used in math to express symmetric difference.