main rotor

Thesaurus

Noun

1.

main rotor - rotor consisting of large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the airrotor - rotating mechanism consisting of an assembly of rotating airfoils; "there are horizontal rotors on a helicopter or compressor rotors in a jet engine"rotary wing, rotor blade - the long airfoil that rotates to provide the lift that supports a helicopter in the airrotor head, rotor shaft - the axis around which the major rotor of a helicopter turns