equilibrium

Universal Words noun [U,sing.] 1 a state of balance, especially between opposing forces or influences: The point at which the solid and the liquid are in equilibrium is called the freezing point. * Any disturbance to the body's state of equilibrium can produce stress. * We have achieved an equilibrium in the economy. 2 a calm state of mind and a balance of emotions: He sat down to try and recover his equilibrium.