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olfactory bulb

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noun Anatomy.
  1. the enlarged terminal part of each olfactory lobe from which the olfactory nerve originates.

Origin of olfactory bulb

First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for olfactory bulb

olfactory bulb

noun
  1. the anterior and slightly enlarged end of the olfactory tract, from which the cranial nerves concerned with the sense of smell originate
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

olfactory bulb in Medicine

olfactory bulb

n.
  1. The bulblike distal end of the olfactory lobe where the olfactory nerves begin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.