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 (ĕv′ə-lo͞o′shən, ē′və-)
a. A gradual process in which something changes into a different and usually more complex or better form.
b. A result of this process; a development: Judo is an evolution of an earlier martial art.
2. Biology
a. Change in the genetic composition of a population during successive generations, often resulting in the development of new species. The mechanisms of evolution include natural selection acting on the genetic variation among individuals, mutation, migration, and genetic drift.
b. The historical development of a related group of organisms; phylogeny.
3. Astronomy Change in the structure, chemical composition, or dynamical properties of a celestial object or system such as a planetary system, star, or galaxy. Evolution often changes the observable or measurable characteristics of the object or system.
4. A movement that is part of a set of ordered movements: naval evolutions in preparation for battle.
5. Mathematics The extraction of a root of a quantity.

[Latin ēvolūtiō, ēvolūtiōn-, from ēvolūtus, past participle of ēvolvere, to unroll; see evolve.]

ev′o·lu′tion·al, ev′o·lu′tion·ar′y (-shə-nĕr′ē) adj.
ev′o·lu′tion·ar′i·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.evolutionary - of or relating to or produced by evolutionevolutionary - of or relating to or produced by evolution; "evolutionary biology"
تَطَوُّري، إرْتِقائي


[ˌiːvəˈluːʃnərɪ] ADJevolutivo


[ˌiːvəˈluːʃənəri] adj [process] → d'évolution; [theory] → de l'évolution
evolutionary change → évolution f


adjevolutionär; evolutionary theoryEvolutionstheorie f


[ˌiːvəˈluːʃənrɪ] adjevolutivo/a


(iˈvolv) verb
to (cause to) develop gradually. Man evolved from the apes.
evolution (iːvəˈluːʃən) , ((American) e-) noun
1. gradual working out or development. the evolution of our form of government.
2. the development of the higher kinds of animals (eg man), plants etc, from the lower kinds. Darwin's theory of evolution.
evolutionary (iːvəˈluːʃənəri) , ((American) e-) adjective
References in classic literature ?
The change in form and kinds of the lower animals was even more marked than the evolutionary stages of man.
Literally translated, it is equivalent to through, finished, done-for, as applied to an individual's evolutionary progress in Caspak, and with this information was developed the interesting fact that not every individual is capable of rising through every stage to that of Galu.
Through all the apparitions that preceded you and that compose the parts of you, you rose gibbering from the evolutionary mire, and gibbering you will pass on, interfusing, permeating the procession of apparitions that will succeed you.
But the higher we rise in the evolutionary scale, broadly speaking, the greater becomes the power of learning, and the fewer are the occasions when pure instinct is exhibited unmodified in adult life.
Nevertheless, because of widespread disbelief in evolutionary biology, controversies such as the one in Kansas are not isolated incidents.
Seen as parts of an inseparable dyad, sickness and healing - the so-called SH complex - are placed within an evolutionary frame of reference and explained as essential aspects of genetic and cultural human adaptation.
Tickling and laughter are universal among humans and can even be found among chimpanzees, suggesting that they serve some serious evolutionary purpose.
The contributors come from "old" institutionalism, "new" institutionalism, evolutionary economics, and related fields of inquiry.
The ideas behind evolutionary biology have, since the publication of Darwin's writings, become ingrained in everyday culture.
The original intent of Darwin Day was to recognize Darwin's remarkable powers of observation and profound insight into the evolutionary connections between all life on Earth.
Human society, he argues, "exfoliates from human biology," and his book attempts to parse the "biogrammar," or underlying range and rules, of a culture underwritten by evolutionary "strategies of survival.

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