Plain English Meaning
A way of approaching the runway in a crosswind where you point the nose slightly into the wind so the airplane drifts straight down the runway centerline, even though it isn't pointing exactly where it's going.
Full Definition
A crosswind landing technique in which the airplane's nose is held pointed into the wind by an angle sufficient to make the airplane's ground track align with the runway centerline, while the wings remain level. The crab angle is maintained throughout the approach and is removed just before touchdown by applying rudder to align the longitudinal axis with the runway.
Context Anchor
Used during when wind is blowing across the runway.