In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+22CD (REVERSED TILDE EQUALS).
In Relations103
All 103 in RelationsThe ⋍ symbol (Reversed tilde equals, U+22CD), written as \backsimeq in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+22CD (REVERSED TILDE EQUALS).