a helical propeller that gives a lifting motion to an airship or flying-machine.

That lifts, in senses of the verb, spec. in lifting-bridge n. a bridge of which either a part or the whole may be drawn up at one end when needful. li…

Aeronautics. A hub with a number of radiating arms that is rotated in an approximately horizontal plane to provide the lift for a helicopter or…

An airscrew, esp. one of the kind designed by Cierva for the autogiro. Now Historical.

tilting rotor Aeronautics, a rotor which may be tilted to function as a propeller during cruising flight; cf. tilt rotor n. at tilt, n.2 additions.

= tilting rotor at tilting, adj. additions b; hence, an aircraft fitted with these; frequently attributive.