单词 | saltationism |
释义 | saltationism[ sal-tey-shuh-niz-uhm ] / sælˈteɪ ʃəˌnɪz əm / 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. Origin of saltationismFirst recorded in 1970–75; saltation + -ism OTHER WORDS FROM saltationismsal·ta·tion·ist, nounWords nearby saltationismsalta, saltando, saltant, saltarello, saltation, saltationism, saltatorial, saltatory, saltatory conduction, saltatory evolution, saltatory spasm Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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