equilibriums
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]