| NOUN | artifact | rotor blade, rotary wing | the long airfoil that rotates to provide the lift that supports a helicopter in the air |
|---|
| Meaning | The long airfoil that rotates to provide the lift that supports a helicopter in the air. | |
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| Synonym | rotary wing | |
| 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 |
| Broader | airfoil, aerofoil, control surface, surface | A device that provides reactive force when in motion relative to the surrounding air |
| Spanish | ala giratoria | |
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