Bascule
Pronunciation : Bas"cule
Part of Speech : n.
Etymology : [F., a seesaw.]
Definition : Defn: In mechanics an apparatus on the principle of the seesaw, in which one end rises as the other falls. Bascule bridge, a counterpoise or balanced drawbridge, which is opened by sinking the counterpoise and thus lifting the footway into the air.
Source : Webster's Unabridged Dictionary, 1913