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An evolutionary trend in the animal kingdom toward centralization of neural and sensory organs in the head or anterior region of the body.
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.


(ˌsɛfəlaɪˈzeɪʃən) or


(Zoology) (in the evolution of animals) development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌsɛf ə ləˈzeɪ ʃən)

a tendency in animal evolution to localization of important organs or parts in or near the head.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
In comparison, experiments on decapitated planarians have shown full recovery, cephalization, and regeneration of the entire CNS (Cebria, 2007; Umesono and Agata, 2009).
Chest X-ray demonstrated a right lower lobe consolidation with evidence of central pulmonary venous congestion and cephalization (Image 9).
If we can safely assert that artistic/literary/musical production has congregated in historical and modern urban centers, we can deduce that it is partly as a result of the inevitable geographies of cultural cephalization. The accompanying body of critical work, though acutely aware of the place of production (namely urban centers that facilitated the distribution of cultural artifacts), has not always focused on the importance of space within said production, or as Michel Foucault plainly states, "space was treated as the dead, the fixed, the undialectical, the immobile.
leads to compensatory dilatation of left atrium and pulmonary venous hypertension on frontal chest visible as 'upper lobe blood diversion' or 'pulmonary vascular cephalization'(Fig.
Furthermore, in the higher gastropods especially Neogastropoda, all the major ganglia migrate to the head region (cephalization), and thus are adjacent to the major sense organ in the head, and the ganglia are fused by shortening the connections between ganglia, resulting in a reduction of the communication time between the cerebral ganglia and other ganglia (Pierce 1950).
Cephalization, interstitial oedema, and alveolar oedema are highly specific (96 to 99%) but insensitive (6 to 41%) markers of acute heart failure (27).