单词	orthogenesis
释义	orthogenesis noun or·​tho·​gen·​e·​sis ˌȯr-thə-ˈje-nə-səs  : variation of organisms in successive generations that in some especially former evolutionary theories takes place in some predestined direction resulting in progressive evolutionary trends independent of external factors orthogenetic ˌȯr-thə-jə-ˈne-tik  adjective orthogenetically ˌȯr-thə-jə-ˈne-ti-k(ə-)lē  adverb Example Sentences Recent Examples on the Web The various models proposed for the mechanism of evolution, such as Lamarckian evolution, orthogenesis and use-disuse, all implied some level of teleology: that there was a directionality inherent in the process. Mano Singham, Scientific American, 5 Sep. 2021 The various models proposed for the mechanism of evolution, such as Lamarckian evolution, orthogenesis, and use-disuse, all implied some level of teleology, that there was a directionality inherent in the process. Mano Singham, Scientific American, 5 Sep. 2021 Word History Etymology New Latin First Known Use 1895, in the meaning defined above Medical Definition orthogenesis noun or·​tho·​gen·​e·​sis ˌȯr-thə-ˈjen-ə-səs  plural orthogeneses -ˌsēz  : variation of organisms in successive generations that in some evolutionary theories takes place in some predestined direction and results in progressive evolutionary trends independent of external factors
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