Code point
U+22E3
Glyph appearance depends on your fonts.
U+22E3
Sm2292 0338U+22E3 NOT SQUARE ORIGINAL OF OR EQUAL TO 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+22E3
8931
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E2 8B A3
22E3
000022E3
%E2%8B%A3
\u22E3
\u22E3
\u22E3
\22E3