In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+2A8A (GREATER-THAN AND NOT APPROXIMATE).
The ⪊ symbol (Greater-than and not approximate, U+2A8A), written as \gnapprox in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+2A8A (GREATER-THAN AND NOT APPROXIMATE).