PRA PRAgmatics. The language used by {COPS} for specification of {code generators}. ["Metalanguages of the Compiler Production System COPS", J. Borowiec, in GI Fachgesprach "Compiler-Compiler", ed W. Henhapl, Tech Hochs Darmstadt 1978, pp. 122-159]. (1994-11-18)
PRA Purported Responsible Address [algorithm] (MS, SPAM)