Emulation rhymes with:
accumulation, formulation, simulation, stimulation, accumulation, articulation, calculation, coagulation, confabulation, deregulation, formulation, granulation, innoculation, inoculation, manipulation, miscalculation, overpopulation, overregulation, ovulation, population, recalculation, regulation, reregulation, simulation, speculation, stimulation, stipulation, strangulation, tabulation, tribulation