= R =
1. Anything that requires heavy wizardry
or black art to parse: core dumps, JCL commands, APL, or
code in a language you haven't a clue how to read. Not quite as
bad as line noise, but close. Compare casting the runes,
Great Runes. 2. Special display characters (for example, the
high-half graphics on an IBM PC). 3. [borderline techspeak]
16-bit characters from the Unicode multilingual character set.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.