screw propeller

Found in Anh - Anh (Wordnet)

Definition Noun : A type of propulsion device consisting of a central hub with several angled blades (typically three or more) radiating from it. The entire assembly rotates on a shaft, and its helical (screw-like) motion pushes against a fluid—most commonly water or air—to generate thrust and propel a vehicle forward. Usage The term "screw propeller" specifically describes the mechanical devic...