camber

Concise Oxford English Dictionary © 2008 Oxford University Press:
camber /ˈkambə/

▶noun

• 1 a slightly convex or arched shape of a road or other horizontal surface.

  ■ Brit. a tilt built into a road at a bend or curve.

• 2 the slight sideways inclination of the front wheels of a motor vehicle.

• 3 the extent of curvature of a section of an aerofoil.

– derivatives
cambered adjective.

– origin ME: from OFr. cambre, dial. var. of chambre ‘arched’, from L. camurus ‘curved inwards’.