Definitions for "airscrew"
an airplane propeller.
All. types of screws with helical blades designed to rotate in air and more particularly power-driven screws designed to produce thrust by rotation. Synonymous with the term 'propeller'. Airscrew slip is the ratio of the actual advance per revolution of an airscrew to the theoretical r advance per revolution. Airscrew efficiency is an expression of this ratio, normally about 82 per cent.
a propeller that rotates to push against air