bascule
- n a structure or device in which one end is counterbalanced by the other (on the principle of the seesaw)
- In fact, the leaves of the bascule-type bridge could be so camouflaged and with an imitation lock close by that I doubt very much whether the real lock could be located from the .
- The links' main span across the river which cost $2,885,000 is the biggest bascule bridge in the world.