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1. The reappearance of a characteristic in an organism after several generations of absence.
2. An individual or a part that exhibits atavism. Also called throwback.
3. The return of a trait or recurrence of previous behavior after a period of absence.
[French atavisme, from Latin atavus, ancestor : atta, father + avus, grandfather; see awo- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Biology) the recurrence in a plant or animal of certain primitive characteristics that were present in an ancestor but have not occurred in intermediate generations
2. reversion to a former or more primitive type
[C19: from French atavisme, from Latin atavus strictly: great-grandfather's grandfather, probably from atta daddy + avus grandfather]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
at•a•vism(ˈæt əˌvɪz əm)
a. the reappearance in an individual of characteristics of some remote ancestor that have been absent in intervening generations.
b. an individual embodying such a reversion.
2. reversion to an earlier type; throwback.
[1825–35; < Latin atav(us) remote ancestor (at-, akin to atta familiar name for a grandfather + avus grandfather, forefather) + -ism]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
the reappearance in the present of a characteristic belonging to a remote ancestor. — atavist, n. — atavistic, adj.See also: Ancestors
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
atavism[ˈætəvɪzəm] N → atavismo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
n → Atavismus m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
n. atavismo, reproducción de rasgos y características ancestrales.
English-Spanish Medical Dictionary © Farlex 2012