Code point
U+2296
Glyph appearance depends on your fonts.
U+2296
SmU+2296 CIRCLED MINUS is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Mathematical Operators block.
Choose the representation you need, then copy its value.
U+2296
8854
⊖
⊖
⊖
E2 8A 96
2296
00002296
%E2%8A%96
\u2296
\u2296
\u2296
\2296