- a type of aircraft which derives both lift and propulsion from one or two sets of horizontally revolving overhead rotors. It is capable of moving vertically and horizontally, the direction of motion being controlled by the pitch of the rotor blades.直升（飞）机。比较 AUTOGIRO.
with obj. and adverbial of direction
1- transport by helicopter用直升机运送。
1.1
- no obj., with adverbial of direction fly somewhere in a helicopter乘直升机飞至（某地）。
词源
late 19th cent.: from French hélicoptère, from Greek helix 'spiral' + pteron 'wing'.