1. plural of fulcrum: the points on which levers rest or are supported and on which they pivot
Usage: physics; mechanics
2. plural of fulcrum: the most important parts of activities or situations; central points
Usage: figurative

Examples

• The engineer calculated the positions of the fulcrums needed to lift the heavy beam.
• Multiple fulcrums were placed along the construction site to support the lifting equipment.
• The teacher explained how different fulcrums affect the mechanical advantage of levers.
• These negotiations serve as the fulcrums for future peace agreements.
• The company identified several fulcrums in their supply chain that needed improvement.
• Historical events often have multiple fulcrums that determine their outcomes.