evolucionist
An evolutionist is a person who accepts the theory of evolution as a primary explanation for the origin and development of life on Earth and who studies its mechanisms, such as natural selection, genetic variation, and speciation. The standard English spelling is evolutionist; "evolucionist" is not a common variant in English. The term is broad and historically has referred to scientists across biology who argued that species change over time and share common ancestry.
The word evolution derives from Latin evolutio. In English, evolutionist arose in the 19th century to describe
In contemporary scientific discourse, "evolutionist" is less common and can be perceived as antiquated or non-specific.