noun
Refers to a mechanical device with rotating blades that provides thrust for aircraft or boats.
飛行機のプロペラが回り始めた。
The airplane's propeller started spinning.
この船はプロペラが二つ付いている。
This ship has two propellers.
スクリュー often refers to a ship's screw propeller or a screw-shaped device, while プロペラ is the general term for propellers on aircraft and boats.
Borrowed from English 'propeller'.