Webster's Revised Unabridged Dictionary · 1913

Helicopter

Helicopter , noun

[New Latin, from Greek "e`lix, "e`likos, a spiral + ptero`n a wing.]

a heavier-than-air aircraft whose lift is provided by the aerodynamic forces on rotating blades rather than on fixed wings. Contrasted with fixed-wing aircraft.

Helicopter , intransitive verb

to travel in a helicopter.

Helicopter , transitive verb

to transport in a helicopter.