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lamarckianism

 - 2 dictionary results
La·marck·ism   (lə-mär'kĭz'əm)   
n.  A theory of biological evolution holding that species evolve by the inheritance of traits acquired or modified through the use or disuse of body parts.

[After Chevalier de Jean Baptiste Pierre Antoine de Monet Lamarck.]
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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Medical Dictionary

Main Entry: La·marck·ian·ism
Pronunciation: -kE-&-"niz-&m
Function: noun
: LAMARCKISM
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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