[pey-lee-oh-kawr-teks; especially British pal-ee-]
noun Anatomy.
the olfactory region of the brain.

1905–10; paleo- + cortex

paleocortical [pey-lee-oh-kawr-ti-kuhl; especially British pal-ee-] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

paleocortex pa·le·o·cor·tex (pā'lē-ō-kôr'těks')
The phylogenetically oldest part of the cortical mantle of the cerebral hemisphere, represented by the olfactory cortex.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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