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orthogenesis

play
noun or·tho·gen·e·sis \ˌȯr-thə-ˈje-nə-səs\

Definition of orthogenesis

  1. :  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 play \-jə-ˈne-tik\ adjective
or·tho·ge·net·i·cal·ly play \-ti-k(ə-)lē\ adverb


Origin of orthogenesis

New Latin


First Known Use: 1895


Medical Dictionary

orthogenesis

play
noun or·tho·gen·e·sis \ˌȯr-thə-ˈjen-ə-səs\

Medical Definition of orthogenesis

plural or·tho·gen·e·ses \-ˌsēz\play

  1. :  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

  2. or·tho·ge·net·ic \-jə-ˈnet-ik\play adjective




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