Aquaplaning, also known as hydroplaning, is a phenomenon that occurs when a layer of water builds up between the tires of a vehicle and the road surface, causing the tires to lose contact with the road. This can result in a loss of traction and control, making it difficult for the driver to steer, brake, or accelerate effectively. Aquaplaning is more likely to occur in wet or rainy conditions, particularly when driving at high speeds.