- A computer instruction which produces no action. It simply serves to cause the processor to utilize clock cycles, or to proceed to the next instruction. Used, for instance, to complete a very long instruction word. Its abbreviation is NO-OP, NOP, or no-op instruction. Also called no operation, do-nothing instruction, or dummy instruction.
- abbreviationno-op instruction
- noun an instruction that does not carry out any functions but increments the program counter