Search Result for "olfactory bulb":
Wordnet 3.0

NOUN (1)

1. one of two enlargements at the terminus of the olfactory nerve at the base of the brain just above the nasal cavities; 



WordNet (r) 3.0 (2006):

olfactory bulb
    n 1: one of two enlargements at the terminus of the olfactory
         nerve at the base of the brain just above the nasal
         cavities