1. metastable - Noun
2. metastable - Adjective
(of physical systems) continuing in its present state of equilibrium unless sufficiently disturbed to pass to a more stable state of equilibrium
Source: WordNet149 Dy has two metastable isomers, the second of which, 149m2 Dy, has a half-life of 28 ns. Source: Internet
Above this temperature and in ambient light, this metastable allotrope transforms into the more stable black allotrope. Source: Internet
• A low melting point is preferable in order to avoid metastable, monotropic liquid crystalline phases. Source: Internet
Below this temperature, honey can be either in a metastable state, meaning that it will not crystallize until a seed crystal is added, or, more often, it is in a "labile" state, being saturated with enough sugars to crystallize spontaneously. Source: Internet
A metastable state of weaker bond (1), a transitional 'saddle' configuration (2) and a stable state of stronger bond (3). Source: Internet
A number of bromine isotopes exhibit metastable isomers. Source: Internet