ALL meanings of punctuated equilibrium
punctuated equilibrium
P p - noun punctuated equilibrium theory of, Biology. 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 species emerge. Also called punctuationalism. Compare gradualism (def 3). 1
- noun punctuated equilibrium 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 change, caused as by climatic or geologic changes 0