from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or pertaining to orthogenesis

from The Century Dictionary and Cyclopedia

  • Pertaining to or of the nature of orthogenesis.


Sorry, no etymologies found.


  • * Futhermore, it is well known that students learning about evolution often make incorrect assumptions about how it is supposed to operate – e.g., several studies in education journals have shown that students often have an almost innate preference for a “Lamarkian” view of how adaptation comes about, or a simplistic orthogenetic or ladder-like linear view of evolution, e.g. from simple to complex, from fish to ape to man, or whatever.

    Casey Luskin: the new Wendell Bird? - The Panda's Thumb

  • Some of the theoretical options of the late nineteenth-century included neo-Lamarckianism, saltationist and orthogenetic theories, and a complex body of theories that attempted to build upon Darwin's insights, typically without making strong use of his principle of natural selection (Shanahan 2004; Bowler 1996, 1983).


  • Like Julian Huxley, he has espoused a grandiose vision of cosmic evolution, or “cosmo - genesis,” which is orthogenetic in the sense that it depicts evolution as having been marked by a steady increase in the complexity and concentration of the stuff of the universe.


  • These instincts, more or less developed in boyhood, are repressed in normal cases before strength and skill are sufficiently developed to inflict serious bodily injury, while without the reductives that orthogenetic growth brings they become criminal.

    Youth: Its Education, Regimen, and Hygiene

  • When beetles, or medusae, or cats vary, the range of possible variation is limited and determined by the beetle, medusa or cat constitution, and any possible further differentiation or specialization must be in a sense at least orthogenetic - that is to say, a continuation of the line along which the ancestors of the individual in question have been forced.

    Conservapedia - Recent changes [en]

  • This idea became the bulwark of orthogenetic theories in the U.S.


  • In addition, highly specialized structures in the human prefrontal cortex may also play an important role. families of vertebrates, it does not seem to have evolved in an orthogenetic way (i.e. that a single line culminates in Homo sapiens for example) but in a parallel way.

    Citizendium, the Citizens' Compendium - Recent changes [en]


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