punctuated equilibrium theory

punctuated equilibrium theory
noun

Useful english dictionary. 2012.

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  • Punctuated equilibrium — is a theory of evolutionary biology which states that most sexually reproducing populations experience little change for most of their geological history, and that when phenotypic evolution does occur, it is localized in rare, rapid events of… …   Wikipedia

  • punctuated equilibrium — or punctuated equilibria n. a theory of evolution holding that characteristics of living organisms remain relatively stable for long periods that are infrequently interrupted, or punctuated, by brief periods of relatively rapid evolutionary… …   English World dictionary

  • punctuated equilibrium — noun a theory of evolution holding that evolutionary change in the fossil record came in fits and starts rather than in a steady process of slow change • Syn: ↑theory of punctuated equilibrium • Hypernyms: ↑theory of evolution, ↑theory of organic …   Useful english dictionary

  • theory of punctuated equilibrium — noun a theory of evolution holding that evolutionary change in the fossil record came in fits and starts rather than in a steady process of slow change • Syn: ↑punctuated equilibrium • Hypernyms: ↑theory of evolution, ↑theory of organic evolution …   Useful english dictionary

  • punctuated equilibrium — theory of, Biol. a hypothesis holding that the evolution of species proceeds in a characteristic pattern of relative stability for long periods of time interspersed with much shorter periods during which many species become extinct and new… …   Universalium

  • punctuated equilibrium — noun A theory of evolution holding that evolutionary change tends to be characterized by long periods of stability, or equilibrium, punctuated by episodes of very fast development …   Wiktionary

  • punctuated equilibrium — noun Date: 1978 evolution that is characterized by long periods of stability in the characteristics of an organism and short periods of rapid change during which new forms appear especially from small subpopulations of the ancestral form in… …   New Collegiate Dictionary

  • punctuated equilibrium — punc′tuated equilib′rium n. bio a theory that the evolution of species proceeds with long periods of relative stability interspersed with rapid change Compare gradualism 2) • Etymology: 1972 …   From formal English to slang

  • punctuated equilibrium — /ˌpʌnktʃueɪtəd ikwəˈlɪbrium/ (say .punkchoohaytuhd eekwuh libreeoohm) noun a theory of evolution which states that the evolutionary pattern is one in which significant change in the rate of change is the norm, long periods of relative stability… …  

  • Equilibrium — is the condition of a system in which competing influences are balanced and it may refer to:cienceBiology* Equilibrioception, the sense of balance present in humans and animals * Homeostasis, the ability of an open system, especially living… …   Wikipedia

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