cam·ber /ˈkæmbɚ/
  弧形,眉形,(機翼的)彎曲度(vi.)成弧形(vt.)使彎作弧形
  Cam·ber n.
  1. Shipbuilding An upward convexity of a deck or other surface; as, she has a high camber (said of a vessel having an unusual convexity of deck).
  2. Arch. An upward concavity in the under side of a beam, girder, or lintel; also, a slight upward concavity in a straight arch. See Hogback.
  Camber arch Arch., an arch whose intrados, though apparently straight, has a slightly concave curve upward.
  Camber beam Arch., a beam whose under side has a concave curve upward.
  Cam·ber, v. t. [imp. & p. p. Cambered p. pr. & vb. n. Cambering.] To cut bend to an upward curve; to construct, as a deck, with an upward curve.
  Cam·ber, v. i. To curve upward.
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  camber
       n 1: a slight convexity (as of the surface of a road)
       2: a slope in the turn of a road or track; the outside is
          higher than the inside in order to reduce the effects of
          centrifugal force [syn: bank, cant]
       3: the alignment of the wheels of a motor vehicle closer
          together at the bottom than at the top
       v : curve upward in the middle