metastable

[ met-uh-stey-buh l, met-uh-stey- ]
/ ˈmɛt əˌsteɪ bəl, ˌmɛt əˈsteɪ- /

adjective

Metallurgy. chemically unstable in the absence of certain conditions that would induce stability, but not liable to spontaneous transformation.
Also labile. Physics, Chemistry. pertaining to a body or system existing at an energy level (metastable state) above that of a more stable state and requiring the addition of a small amount of energy to induce a transition to the more stable state.

Origin of metastable

First recorded in 1895–1900; meta- + stable2

OTHER WORDS FROM metastable

met·a·sta·bil·i·ty [met-uh-stuh-bil-i-tee] /ˌmɛt ə stəˈbɪl ɪ ti/, noun

Words nearby metastable

metarubricyte, metascope, metasequoia, metasoma, metasomatism, metastable, metastasio, metastasis, metastasize, metastatic abscess, metastatic calcification

Example sentences from the Web for metastable

British Dictionary definitions for metastable

metastable
/ (ˌmɛtəˈsteɪbəl) physics /

adjective

(of a body or system) having a state of apparent equilibrium although capable of changing to a more stable state
(of an atom, molecule, ion, or atomic nucleus) existing in an excited state with a relatively long lifetime

noun

a metastable atom, ion, molecule, or nucleus

Derived forms of metastable

metastability, noun