Plain English Meaning

When you roll the airplane to the right, the nose tries to swing the wrong way -- to the left -- because the left wing creates extra drag as its aileron goes down. You use right rudder to stop that and keep the nose going where you want.

Full Definition

Adverse yaw occurring to the left, typically when the pilot rolls into a right turn. The down-aileron on the left wing increases lift and drag on that wing, pulling the nose to the left -- opposite the direction of the intended right roll. In maneuvers such as the Lazy Eight, left adverse yaw must be countered with right rudder to keep the nose tracking correctly through the turn.

Context Anchor

Encountered during lazy eights and other maneuvering , where the pilot must keep the airplane turning smoothly while are changing.