† equiˈlibrousObs. [f. L. æquilībris(see equilibrity) + -ous.] = equilibrious. 1652Sparke Prim. Devot. (1663) 434 In matters of moment that are æquilibrous.1658J. Robinson Eudoxa viii. 46 In some [bodies], there need but a small moment to make them equilibrous with the Water.