背的上部
1.A marine fish of the order Lophiiformes or Pediculati, having a long dorsal fin ray that is suspended over the mouth and that serves as a lure to attract prey.
2.A reddish-blue percoid marine food fish(Lopholatilus chamaeleonticeps) of deep Atlantic waters, having a fleshy flap on the nape and small yellow spots on the upper sides and fins.
3.In single pylon cable stayed bridges, and cable stayed bridges without backstays, when the bottom of the tower bears the moment from the dead load, it is concluded that non-symmetric configuration of pile cluster corresponding to the upper structure is more practical than symmetric configuration of pile cluster.

