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[rahy-nen-sef-uh-lon, -luh n] /ˌraɪ nɛnˈsɛf əˌlɒn, -lən/
noun, plural rhinencephalons, rhinencephala
[rahy-nen-sef-uh-luh] /ˌraɪ nɛnˈsɛf ə lə/ (Show IPA).
the part of the cerebrum containing the olfactory structures.
1840-50; rhin- + encephalon
Related forms
[rahy-nen-suh-fal-ik] /ˌraɪ nɛn səˈfæl ɪk/ (Show IPA),
rhinencephalous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rhinencephalon
  • Although superficially continuous with the hippocampal gyrus, the uncus forms morphologically a part of the rhinencephalon.
  • The position and connections of the remaining portions of the rhinencephalon are described with the anatomy of the brain.
  • The indusium is usually considered as a rudimentary part of the rhinencephalon.
British Dictionary definitions for rhinencephalon


noun (pl) -lons, -la (-lə)
(anatomy) the parts of the brain, in both cerebal hemispheres, that in the early stages of evolution were concerned with the sense of smell. It includes the olefactory bulb and tract and the regions of the limbic system
Derived Forms
rhinencephalic (ˌraɪnɛnsɪˈfælɪk) adjective
Word Origin
C19: from rhino- + encephalon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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rhinencephalon in Medicine

rhinencephalon rhi·nen·ceph·a·lon (rī'něn-sěf'ə-lŏn', -lən)
n. pl. rhi·nen·ceph·a·la (-lə)
The olfactory region of the brain, located in the cerebrum.

rhi'nen·ce·phal'ic (-sə-fāl'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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