evolutionism

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ev·o·lu·tion·ism

 (ĕv′ə-lo͞o′shə-nĭz′əm, ē′və-)
n.
1. A theory of biological evolution, especially that formulated by Charles Darwin.
2. Advocacy of or belief in biological evolution.

ev′o·lu′tion·ist n.

evolutionism

a principle or theory of evolution. — evolutionist, n., adj.
See also: Evolution
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.evolutionism - (biology) a scientific theory of the origin of species of plants and animals
scientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable"
biological science, biology - the science that studies living organisms
Darwinism - a theory of organic evolution claiming that new species arise and are perpetuated by natural selection
Lamarckism - a theory of organic evolution claiming that acquired characteristics are transmitted to offspring
punctuated equilibrium, theory of punctuated equilibrium - a theory of evolution holding that evolutionary change in the fossil record came in fits and starts rather than in a steady process of slow change