Wiktionary
multistability
n. The condition of being multistable
Wikipedia
Multistability
In a dynamical system, multistability is the property of having multiple stable equilibrium points in the vector space spanned by the states in the system. By mathematic necessity, there must also be unstable points between the stable points. Points that are stable in some dimensions and unstable in others are termed unstable, as is the case with the first three Lagrangian points.