rhinencephalon > define
noun
- A center in the cerebral hemispheres that governs the sense of smell in lower animals; in humans it seems to mediate complex emotional behavior.
- synonyms: olfactory brain
by WordNet 3.0 © 2006 by Princeton University
(n.) The division of the brain in front of the prosencephalon, consisting of the two olfactory lobes from which the olfactory nerves arise.
by Webster's Revised Unabridged Dictionary