Here's what rhymes with isentropic.

Consider these alternatives

adiabatic / diabatic isothermal / external emulsification / education compressibility / ability deconvolution / solution monatomic / economic denitrification / situation assimilatory / story eigenfunction / function ideograph / half recrystallization / relation cupellation / relation flocculation / relation coalescence / presence stationarity / therapy nitrification / situation fractionation / information electrodeposition / position styloid / avoid fluidization / education