Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a short polypeptide in some animals, esp. in the brain and stomach of a mammal, that stimulates the activity of the nervous, endocrine, and immune systems
Used by arrangement with John Wiley & Sons, Inc.
bombesin - Medical Definition
The American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A neuropeptide found in brain tissue and at vagal nerve endings in the gastrointestinal mucosa.