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).-an upward concavity in the under side of a beam, girder, or lintel; also, a slight upward concavity in a straight arch. see hogback.-to cut bend to an upward curve; to construct, as a deck, with an upward curve.-to curve upward.