First Known Use: 1895
Dictionary
orthogenesis
noun or·tho·gen·e·sis \ˌȯr-thə-ˈje-nə-səs\
Definition of ORTHOGENESIS
: 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
— or·tho·ge·net·ic \-jə-ˈne-tik\ adjective
— or·tho·ge·net·i·cal·ly \-ti-k(ə-)lē\ adverb
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Origin of ORTHOGENESIS
New Latin
Medical Dictionary
orthogenesis
noun or·tho·gen·e·sis \ˌȯr-thə-ˈjen-ə-səs\
plural or·tho·gen·e·ses \-ˌsēz\
Medical Definition of ORTHOGENESIS
: 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
—or·tho·ge·net·ic \-jə-ˈnet-ik\ adjective
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