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orthogenetic

 - 2 dictionary results

or⋅tho⋅ge⋅net⋅ic

  [awr-thoh-juh-net-ik]
Use orthogenetic in a Sentence
–adjective
pertaining to or exhibiting orthogenesis.
Origin:
1895–1900; < NL orthogenet- (s. of orthogenesis) orthogenesis + -ic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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or·tho·gen·e·sis   (ôr'thō-jěn'ĭ-sĭs)   
n.  

  1. Biology The theory that the evolution of a species is influenced most strongly by internal factors and is not subject to the external forces of natural selection.

  2. The theory that all cultures pass through sequential periods in the same order.

or'tho·ge·net'ic (-jə-nět'ĭk) adj., or'tho·ge·net'i·cal·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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