Code point
U+25DA
Glyph appearance depends on your fonts.
U+25DA
SoU+25DA UPPER HALF INVERSE WHITE CIRCLE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Geometric Shapes block.
Choose the representation you need, then copy its value.
U+25DA
9690
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◚
E2 97 9A
25DA
000025DA
%E2%97%9A
\u25DA
\u25DA
\u25DA
\25DA