
1) Chemical property 2) Constancy 3) Stability
Found on
https://www.crosswordclues.com/clue/metastability

Metastability describes the extended time spent by an isolated system in a long lived configuration other than the system`s state of least energy. During a metastable state of finite lifetime all state-describing parameters reach and hold stationary values. While in isolation: A single particle analogy may be drawn with a ball resting in a hollow....
Found on
http://en.wikipedia.org/wiki/Metastability
noun the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more stable equilibrium when sufficiently disturbed
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.