1. n. 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 i
We flew over the city in a helicopter.
2. n. a powered troweling machine with spinning blades used to spread concrete.
3. n. a winged fruit of certain trees, such as ash, elm, and maple
4. n. (slang) A dragonfly; so named because of its resemblance to a helicopter.
