Code point
U+22F8
Glyph appearance depends on your fonts.
U+22F8
SmU+22F8 ELEMENT OF WITH UNDERBAR 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+22F8
8952
⋸
⋸
E2 8B B8
22F8
000022F8
%E2%8B%B8
\u22F8
\u22F8
\u22F8
\22F8