equilibrium

Noun

Synonyms: chemical equilibrium balance equipoise counterbalance labyrinthine sense vestibular sense sense of balance sense of equilibrium

WordNet 3.0

Noun (4)

a stable situation in which forces cancel one another
a chemical reaction and its reverse proceed at equal ratesSynonyms: chemical equilibrium
equality of distributionSynonyms: balance equipoise counterbalance
a sensory system located in structures of the inner ear that registers the orientation of the headSynonyms: labyrinthine sense vestibular sense sense of balance sense of equilibrium

Webster's Dictionary (GCIDE)

Equilibrium \E`qui*lib"ri*um\, n.; pl. E. Equilibriums, L. Equilibria. [L. aequilibrium, fr. aequilibris in equilibrium, level; aequus equal + libra balance. See Equal, and Librate.]

1.Equality of weight or force; an equipoise or a state of rest produced by the mutual counteraction of two or more forces. [1913 Webster]

2.A level position; a just poise or balance in respect to an object, so that it remains firm; equipoise; as, to preserve the equilibrium of the body. [1913 Webster]

Health consists in the equilibrium between those two powers.— Arbuthnot.[1913 Webster]

3.A balancing of the mind between motives or reasons, with consequent indecision and doubt. [1913 Webster]

Equilibrium valve (Steam Engine), a balanced valve. See under Valve. [1913 Webster]