collapsiblepropeller
nounUK /kəˈlæpsɪbəl prəˈpelə/
US /kəˈlæpsəbəl prəˈpɛlər/
A propeller that can fold up small when it is not spinning.
The toy plane has a collapsiblepropeller that folds back when it lands.
OTHER MEANINGS
2. A propeller whose blades fold together to save space during storage or transport.
The collapsiblepropeller makes the drone easy to pack in a backpack.
3. A propeller designed to fold flat when not in use to reduce drag.
Gliders often use a collapsiblepropeller to cut down on air resistance.
4. A folding propeller on a model boat or plane that tucks away when idle.
He replaced the broken collapsiblepropeller on his model boat before the race.