1. A state of balance between opposing forces or actions
The system reached equilibrium after several adjustments.
O sistema atingiu equilíbrio após vários ajustes.
2. A stable, balanced state of mind or emotions
She struggled to maintain her emotional equilibrium during the crisis.
Ela lutou para manter seu equilíbrio emocional durante a crise.
3. In chemistry and physics, a state where reactions or forces are balanced
The chemical equilibrium was disrupted by the temperature change.
O equilíbrio químico foi perturbado pela mudança de temperatura.