metastable

metastable
metastability /met'euh steuh bil"i tee/, n.
/met"euh stay'beuhl, met'euh stay"-/, adj.
1. Metall. chemically unstable in the absence of certain conditions that would induce stability, but not liable to spontaneous transformation.
2. Also, labile. Physics, Chem. 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.
[1895-1900; META- + STABLE2]

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Universalium. 2010.

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  • métastable — [ metastabl ] adj. • 1903; de méta et stable ♦ Chim., phys. Se dit d un équilibre, d un composé, d un mélange, dont la vitesse de transformation ou de réaction est très faible et donne l apparence de la stabilité. Un équilibre métastable peut… …   Encyclopédie Universelle

  • Metastable — Metastable. См. Метастабильный. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • metastable — estable en condiciones determinadas y que se hace inestable con rapidez como el agua líquida por debajo del punto de congelación Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010 …   Diccionario médico

  • metastable — [met΄ə′stā′bəl] adj. changing readily either to a more stable or less stable condition, as certain electrons; unstable …   English World dictionary

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  • metastable — adjective Etymology: International Scientific Vocabulary Date: 1897 having or characterized by only a slight margin of stability < a metastable compound > • metastability noun • metastably adverb …   New Collegiate Dictionary

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  • metastable state — Excited state (see excitation) of an atom, nucleus, or other system that has a longer lifetime than the ordinary excited states and generally has a shorter lifetime than the ground state. It can be considered a temporary energy trap or a somewhat …   Universalium

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  • metastable state — metastabilioji būsena statusas T sritis radioelektronika atitikmenys: angl. metastable condition; metastable state vok. metastabiler Zustand, m rus. метастабильное состояние, n pranc. état métastable, m …   Radioelektronikos terminų žodynas

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