helicopter

Definitions

• An aircraft that is borne along by one or more sets of long rotating blades which allow it to hover, move in any direction including reverse, or land; and typically having a smaller set of blades on its tail that stabilize the aircraft.
• A powered troweling machine with spinning blades used to spread concrete.
• The winged fruit of certain trees, such as ash, elm, and maple.
• (slang) A dragonfly.
• A whirling trick performed with devil sticks.