pulsejet

is likely misspelled.

has no English definition.

As a noun pulsejet

is a valved jet engine where combustion occurs in pulses, as used in the V-1 flying bomb.

As nouns the difference between taxonomy and pulsejet

is that taxonomy is the science or the technique used to make a classification while pulsejet is a valved jet engine where combustion occurs in pulses, as used in the flying bomb.

As nouns the difference between pulsejet and aeropulse

is that pulsejet is a valved jet engine where combustion occurs in pulses, as used in the flying bomb while aeropulse is pulsejet.