evolution
//ˌɛvəˈluːʃən//
Noun
evolutionSingular
evolutionsPlural
1
The gradual development of organisms from simple to more complex forms through natural selection and genetic variation over successive generations
Darwin's theory of evolution explains how species change over time through natural selection.
2
A gradual process of change, growth, or development over time
The evolution of technology has changed the way we communicate.
3
The process by which different kinds of living organisms are believed to have developed from earlier forms during the history of the earth
Darwin's theory of evolution explains how species change over time.