1. The pivot point or support on which a lever rests and turns
The fulcrum of the seesaw is at its center point.
O fulcro do balanço está no ponto central.
2. A central point or thing on which something depends or turns; a pivot
Education is the fulcrum of social progress.
A educação é o fulcro do progresso social.
3. In mechanics, the point of support or axis of rotation in a lever system
Moving the fulcrum changes the mechanical advantage of the lever.
Mover o fulcro muda a vantagem mecânica da alavanca.