This character is a Other Letter and is mainly used in the Egyptian Hieroglyphs script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+1312B forms with similar adjacent characters prevents a line break inside it.
The Unikemet database provides additional information about this hieroglyph. It is described there as βA spine, with the spinal cord hanging out at either side.β.
The Wikipedia has the following information about this codepoint:
The use of the Spine with fluid hieroglyph is for words showing "length", as opposed to 'breadth', (Egyptian usekh-(breadth, width)-for example, the Usekh collar). Some example words for 'length' are: to be long, length, to extend, extended; and for to expand, to dilate, words like: joy, gladness, pleasure, delight.
Representations
System
Representation (click value to copy)
NΒΊ
78123
UTF-8
F0 93 84 AB
UTF-16
D8 0C DD 2B
UTF-32
00 01 31 2B
URL-Quoted
%F0%93%84%AB
HTML hex reference
𓄫
Wrong windows-1252 Mojibake
Γ°ββΒ«
Encoding: GB18030 (hex bytes)
90 39 FD 37
RFC 5137
\u'1312B'
Bash and Zsh inside echo -e
\U0001312B
C and C++
\U0001312B
C#
\U0001312B
CSS
\01312B
Excel
=UNICHAR(78123)
Go
\U0001312B
JavaScript
\uD80C\uDD2B
Modern JavaScript since ES6
\u{1312b}
JSON
\uD80C\uDD2B
Java
\uD80C\uDD2B
Lua
\u{1312B}
Matlab
char(78123)
Perl
"\x{1312B}"
PHP
\u{1312b}
PostgreSQL
U&'\+01312B'
PowerShell
`u{1312B}
Python
\U0001312B
Ruby
\u{1312b}
Rust
\u{1312b}
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