A computer program performing the reverse operation to that of a compiler.(noun)
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Use "decompiler" in a sentence
"This is an Eclipse plugin that works with the Jad decompiler."
"Kinesis Software has shipped KineticFusion, a decompiler/reverse-engineerer for Flash packages."
"The decompiler makes a whole copy, for a commercial purpose, of a copyrighted work, precisely in order to cause harm to its market by offering a substitute good."