steady state theory
noun Date: 1948 a theory in astronomy: the universe has always existed and has always been expanding with hydrogen being created continuously — compare big bang theory

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • steady-state theory — n. a theory of cosmology, no longer favored, holding that new matter is continuously being created, thus keeping the density of the expanding universe constant: see BIG BANG THEORY * * * Concept of an expanding universe whose average density… …   Universalium

  • steady-state theory — noun (astronomy) In cosmology, a theory that asserts the universe is in a steady state, being infinitely old and containing the same density of matter at all points and all times, with new matter being created to compensate for the space left by… …   Useful english dictionary

  • steady-state theory — n. a theory of cosmology, no longer favored, holding that new matter is continuously being created, thus keeping the density of the expanding universe constant: see BIG BANG THEORY …   English World dictionary

  • steady state theory — steady state .theory n [singular] technical the idea that things in space have always existed and have always been moving away from each other as new atoms begin to exist →↑big bang theory …   Dictionary of contemporary English

  • Steady State theory — This article is about Cosmology. For other uses, see Steady state (disambiguation). Physical cosmology …   Wikipedia

  • steady state theory — noun (cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other the steady state theory has been abandoned in favor of the big bang theory… …   Useful english dictionary

  • steady state theory — Astron. a theory in which the universe is assumed to have average properties that are constant in space and time so that new matter must be continuously and spontaneously created to maintain average densities as the universe expands. Also called… …   Universalium

  • steady state theory — noun the cosmological theory that the universe has always existed in a steady state and that the expansion of the universe is compensated by the continuous creation of matter as a property of space itself. Compare big bang theory …   Australian English dictionary

  • steady state theory — stead′y state′ the ory n. astron. a theory that maintains that the average temperature and density of the universe are held constant through the creation of new matter and energy as the universe expands Compare big bang theory • Etymology:… …   From formal English to slang

  • steady state theory — UK / US noun [singular] physics the theory that the universe has always existed and that the movements of stars have always happened, which is opposed to the Big Bang theory …   English dictionary

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