equilibrium

noun

1.
a stable situation in which forces cancel one another
Antonym:
disequilibrium
Derived from:
equilibrate equilibrize
2.
a chemical reaction and its reverse proceed at equal rates
chemical equilibrium
Derived from:
equilibrate
3.
4.
a sensory system located in structures of the inner ear that registers the orientation of the head
labyrinthine sense sense of balance sense of equilibrium vestibular sense
Derived from:
equilibrate