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saltationism
[ sal-tey-shuh-niz-uhm ]
noun
, Biology.
- any of several theories holding that the evolution of species proceeds in major steps by the abrupt transformation of an ancestral species into a descendant species of a different type, rather than by the gradual accumulation of small changes.
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Other Words From
- sal·tation·ist noun
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Word History and Origins
Origin of saltationism1
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