Definitions for "Reducible"
An entry attribute telling the compiler that multiple calls to this entry with the same parameters can be reduced to a single call. That is, the entry returns identical values for calls with the same set of parameters and has no side effects. REDUCIBLE is the opposite of IRREDUCIBLE.
Keywords:  lessen, restore, correct, normal
to lessen or correct; to restore to normal
Something that can be brought down, or prices or costs that can be lowered.
Keywords:  capable
Capable of being reduced.