rotor blade

Noun
  1. The long airfoil that rotates to provide the lift that supports a helicopter in the air (synset 104119346)
    is a type of: aerofoil, airfoil, control surface, surface - a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
    is a part of: main rotor - rotor consisting of large rotating airfoils on a single-rotor helicopter that produce the lift to support the helicopter in the air
    same as: rotary wing

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