U+237C ⍼ RIGHT ANGLE WITH DOWNWARDS ZIGZAG ARROW (angzarr).
To register own symbol in Unicode
Unicode has a character U+237C which does not mean …. NOTHING. People have blown up to find out its meaning and significance and came to the conclusion that between 1986 and 1991 someone put it on the registry of the Association for Font Information Interchange for 5-50 dollars, which then dissolved and transferred its registry to Unicode… and the symbol has lived without purpose or meaning ever since.
I had no idea what it meant or was used for, thus assigned it a “descriptive name” when collating the symbols for the STIX project. (I still have no idea, nor can supply an example of the symbol in use.) […] it is the case that ISO 9573-13 existed long before either AFII or the STIX project were formed. […] I once asked Charles Goldfarb what the source of these entities was, but remember that he didn’t have a definitive answer. Barbara Beeton