Definition

The spinning of a helicopter's blades that happens because of the upward flow of air, allowing the helicopter to stay in the air without using its engine power.

Example

During autorotation, the helicopter can glide safely to the ground even if the engine fails.

Conversation

Have you ever heard of autorotation in helicopters?

Yeah, it’s that technique they use to land safely, right?

Exactly! It’s amazing how they can glide down using just air.

I know, it’s really impressive how pilots control that.

Synonyms & Antonyms

Root Explanation

Autorotation → It is formed from "auto-" (meaning self) and "rotation" (from Latin "rotatio", meaning a turning or revolving). The word describes a self-initiated turning or revolving motion, particularly in the context of aircraft or helicopters.

Memory Tip

Think of 'self' ('auto-') causing something to 'turn' ('rotation') — that's how autorotation describes a self-turning motion.

Visually Confused Words