Definition that contains rough air
- airborne moved or conveyed by or through air
- aeronautics the theory and practice of navigation through air or space
- astronautics the theory and practice of navigation through air or space
- drag coefficient the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body
- coefficient of drag the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body