camber (en)

(verb) to curve upward in the middle / (verb) to arch slightly / (verb) to impart camber to / (noun) a slight convexity, arching, or curvature (as of a beam, deck, or road) / (noun) the convexity of the curve of an airfoil from the leading edge to the trailing edge / (noun) a setting of the wheels of an automotive vehicle closer together at the bottom than at the top