evolution[ev′ə lo̵̅o̅′s̸hən; occas. ē′və-]
- Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms.
- An example of evolution is how cell phones have changed over time.
- An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.
- an unfolding, opening out, or working out; process of development, as from a simple to a complex form, or of gradual, progressive change, as in a social and economic structure
- a result or product of this; thing evolved
- a movement that is part of a series or pattern
- a pattern produced, or seemingly produced, by such a series of movements: the evolutions of a fancy skater
- a setting free or giving off, as of gas in a chemical reaction
- the development of a species, organism, or organ from its original or primitive state to its present or specialized state; phylogeny or ontogeny
- Darwinian theory
- Math. the extracting of a root of a given number
Origin of evolutionFr évolutionMil. any of various movements or maneuvers by which troops, ships, etc. change formation
Origin of evolutionClassical Latin evolutio, an unrolling or opening ; from evolutus, past participle of evolvere: see evolve
- 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.
- 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.
- 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.
- A movement that is part of a set of ordered movements: naval evolutions in preparation for battle.
- Mathematics The extraction of a root of a quantity.
Origin of evolutionLatin ēvolūtiō, ēvolūtiōn-, from ēvolūtus, past participle of ēvolvere, to unroll; see evolve.
- ev′o·lu′tion·al, ev′o·lu′tion·ar′y
- (general) Gradual directional change especially one leading to a more advanced or complex form; growth; development.
- The evolution of the universe began with a bang.
- (biology) The change in the genetic composition of a population over successive generations.
- (chemistry) The act or an instance of giving off gas; emission.
- (mathematics) The extraction of a root from a quantity.
- (military) One of a series of ordered movements.
- (dance, sports) A turning movement of the body.
- (gradual process): revolution
From Latin ēvolūtiō (“the act of unrolling, unfolding or opening (of a book)”), from ēvolūtus, perfect passive participle of ēvolvō (“unroll, unfold”), from ē (“out of”), short form of ex, + volvō (“roll”).