You searched for: “pulsejets”
pulsejet (s) (noun), pulsejets (pl)
A jet engine in which the air intake and combustion occur intermittently and produces rapid periodic bursts of thrust.
This entry is located in the following units: jet-, -ject, -jecting, -jected, -jection, -jector, -jectory; jacu-, jac- (page 7) puls-, pulsi-, -pulsion, -pulsive (page 3)