UNCERTAINTY SIGN - Unicode Table

Codepoint: U+2BD1
Literal Character: ⯑
Name: UNCERTAINTY SIGN
Sketch: ................
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Aliases: query
Control Character: no
Block: Miscellaneous Symbols and Arrows
Subblock: Miscellaneous symbols
UTF-8 byte encoding: e2 af 91
UTF-16 byte encoding: 2b d1 (big endian)
HTML Entity: ⯑
Perl string literal: \x{2BD1}
See Also: U+2370: apl functional symbol quad question
U+FFFD: replacement character
Wikipedia: Measurement uncertainty (en)