Definition of evolution
1 : one of a set of prescribed movements
2a : a process of change in a certain direction : unfoldingb : the action or an instance of forming and giving something off : emissionc (1) : a process of continuous change from a lower, simpler, or worse to a higher, more complex, or better state : growth (2) : a process of gradual and relatively peaceful social, political, and economic advanced : something evolved
3 : the process of working out or developing
4a : descent with modification from preexisting species : cumulative inherited change in a population of organisms through time leading to the appearance of new forms : the process by which new species or populations of living things develop from preexisting forms through successive generations Evolution is a process of continuous branching and diversification from common trunks. This pattern of irreversible separation gives life's history its basic directionality. — Stephen Jay Gould; also : the scientific theory explaining the appearance of new species and varieties through the action of various biological mechanisms (such as natural selection, genetic mutation or drift, and hybridization) Since 1950, developments in molecular biology have had a growing influence on the theory of evolution. — Nature In Darwinian evolution, the basic mechanism is genetic mutation, followed by selection of the organisms most likely to survive. — Pamela Weintraubb : the historical development of a biological group (such as a race or species) : phylogeny
5 : the extraction of a mathematical root
6 : a process in which the whole universe is a progression of interrelated phenomena
evolutionarilyplay \ˌe-və-ˈlü-shə-ˌner-ə-lē, ˌē-və-\ adverb
evolutionaryplay \ˌe-və-ˈlü-shə-ˌner-ē, ˌē-və-\ adjective
evolutionismplay \ˌe-və-ˈlü-shə-ˌni-zəm, ˌē-və-\ noun
evolutionistplay \ˌe-və-ˈlü-sh(ə-)nist, ˌē-və-\ noun or adjective
Examples of evolution in a sentence
changes brought about by evolution
an important step in the evolution of computers
Recent Examples of evolution from the web
Urban environments can speed up the process of evolution.
Author Gay Talese joins host David Brancaccio to discuss how this groundbreaking work of New Journalism came about, the evolution of celebrity, and why his story remains as resonant as the day it was first published.
Yet the retail sales report does point to a steady evolution of the U.S. economy.
That’s not a feature that we’re going to launch next week but an industrywide evolution that’s going to take a long time.
Like many things with Mr. Obama, his evolution on climate was essentially an intellectual journey.
the book’s real focus is the subsequent evolution of the sport, in particular its more recent rise in the United States.
The big picture for Fitbit, Mr. Scal said, is its evolution into a digital monitoring platform to discover and prevent health problems.
Evolution tells us there were times in the history of the earth when there were no red jungle fowl.
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Origin and Etymology of evolution
Latin evolution-, evolutio unrolling, from evolvere
First Known Use: 1616
EVOLUTION Defined for Kids
Definition of evolution for Students
1 : the theory that the various kinds of existing animals and plants have come from kinds that existed in the past
2 : the process of development of an animal or a plant
Medical Definition of evolution
1: a process of change in a certain direction tumor evolution and progression—I. J. Fidler et al
2a: the historical development of a biological group (as a race or species) : phylogenyb: a theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations
Seen and Heard
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