Which term describes the inward curve of a canoe above the waterline?

The term that describes the inward curve of a canoe above the waterline is "tumblehome." This design feature allows the canoe to be more stable by bringing the top edges of the hull inwards as it rises above the waterline. Tumblehome helps improve paddling efficiency and makes the canoe easier to maneuver. Additionally, it can enhance the overall aesthetic of the canoe while providing some protection against water entering the vessel when waves are present.

The other terms relate to different aspects of canoe design: "deadrise" refers to the angle between the bottom of the hull and a horizontal line, often influencing stability and how well the canoe travels through waves. "Flared" describes how the sides of the canoe curve outward, which increases volume above the waterline and can improve initial stability. "Chine" refers to the edge where the hull sides meet the bottom, affecting how the canoe handles turns and stability. Each term is significant in boat design, but for the specific feature of the inward curve above the waterline, "tumblehome" is the precise terminology.