Ballon refers to the light and effortless movement of a dancer. A ballerina with ballon can make you think she's floating in the air after leaping up.
The word has been in use since the 1800s and comes from the French word for "balloon," originally used to describe the light and smooth movement of ballet dancers. Ballon is a skill that reflects exceptional training that combines strength, control, and grace to create movements that look almost magical.