zigamorph: /zig'*-morf/ n. 1. Hex FF (11111111) when used as a
delimiter or fence character. Usage: primarily at IBM shops. 2.
[proposed] n. The Unicode non-character U+FFFF (1111111111111111), a
character code which is not assigned to any character, and so is
usable as end-of-string. (Unicode is a 16-bit character code
intended to cover all of the world's writing systems, including
Latin, Greek, Cyrillic, Chinese, hiragana, katakana, Devanagari,
Thai, Laotian and many other scripts - support for elvish is
planned for a future release).