olfactory bulb

English Thesaurus

1. one of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavities (noun.body)

hypernym	:	neural structure,
definition	:	a structure that is part of the nervous system (noun.body)

part meronym	:	olfactory brain, rhinencephalon,
definition	:	a center in the cerebral hemispheres that governs the sense of smell in lower animals; in humans it seems to mediate complex emotional behavior (noun.body)