Wiktionary
Usage examples of "propwash".
The aircraft made a low pass over the unmoving figure, checking for signs of life, then with a roar of its engine and a blast of dust from its propwash, it rocketed back up to ridge-top level.
The propwash lashed his back as the plane turned away and landed on the trailer.
At a sufficiently high angle of attack and low enough airspeed, the propwash gives you a little shake.