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1. Biology The hypothesis, now largely discredited, that the evolution of species is linear and driven largely by internal factors rather than by natural selection.
2. Anthropology The hypothesis that all cultures evolve in a linear manner from primitivism to civilization.

or′tho·ge·net′ic (-jə-nĕt′ĭk) adj.
or′tho·ge·net′i·cal·ly adv.


1. (Biology) biology
a. evolution of a group of organisms predetermined to occur in a particular direction
b. the theory that proposes such a development
2. (Sociology) the theory that there is a series of stages through which all cultures pass in the same order
orthogenetic adj
ˌorthogeˈnetically adv


(ˌɔr θoʊˈdʒɛn ə sɪs)

a. evolution of a species proceeding by continuous structural changes without presenting a branching pattern of descent.
b. a theory that such evolution of a species is due to a predetermined series of alterations and not subject to natural selection.
2. a hypothetical parallelism between the stages through which every culture necessarily passes in spite of secondary conditioning factors.
or`tho•ge•net′ic (-dʒəˈnɛt ɪk) adj.


progressive evolution, leading to the development of a new form, as can be seen through successive generations. See also society. — orthogenetic, adj.
See also: Biology
progressive evolution, leading to the development of a new form, as can be seen through successive generations. See also society. — orthogenetic, adj.
See also: Evolution
the sociological theory that all cultures or societies follow the same fixed course of determinate evolution. See also evolution. — orthogenetic, adj.
See also: Society
References in periodicals archive ?
Among specific topics are Goethe and Werner: from morphology to orthogenetic principle, the passion of Bob Cairns: creating developmental science, socio-developmental aspects of apprenticeship: the case of musical tuition, knowledge in mind: Piaget's epistemology, and time is of the essence: from the estimation of a single point to the description of functions.
Oral cancer, as well as updates in maxillofacial reconstruction, micro neurosurgery, oral trauma, and facial cosmetic and orthogenetic surgery, will be reviewed at the 2nd Oral and Maxillofacial Surgery Congress to be held in Dubai from May 1-5.
What our sources appear to document is thus a mainly orthogenetic (49) model of adaptation and innovative displacement of Sanskritic elements into a Javano-Balinese framework.
The talk of the day was based on different topics like orthogenetic surgery, which is related to moving the jaws.
I am also concerned to engage with what John Haught has termed "unedited" Darwinian theory--Darwinian theory as accepted and discussed generally within the scientific community--rather than pursuing discarded alternative neo-Lamarckian, orthogenetic, and strong teleological evolutionary theories.
stated that "given the orthogenetic principle (Werner, 1957), it may be that these components [ideological and behavioral components of contribution] are differentiated (e.
The modern synthesis" also involved a rejection of views running counter to these core principles, such as was found in Lamarckian, (8) orthogenetic, and saltational theories.
Sean Freyne envisions much closer relations between Galilean Jews and their counterparts in Judea, arguing for an orthogenetic relationship with Jerusalem grounded in a shared worldview and symbol system.
Orthogenetic theories had certain lines of affinity with neo-Lamarckianism, but these theories, generally developed by paleontologists, emphasized the existence of non or even anti adaptive changes that could arise spontaneously or in relation to simple physical forces and anatomical plan restraints.
Wapner (1993) describes a holistic, developmental, systems-oriented perspective of parent development that is exemplified by the orthogenetic principle which, proceeds from an undifferentiated to a differentiated state, and a new level of organization.
Werner referred to this as orthogenetic principle of development.