Definition of "gastrin" [gastrin]

• A hormone secreted by glands in the mucous membrane of the stomach that stimulates the production of gastric juice. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The molecule closely simulates the hormone gastrin, which is involved with hydrochloric acid secretion."
• "Similarly, women are more likely to have higher levels or more frequent mutations in biomarkers known to be involved in lung cancer, such as gastrin-releasing peptide factor or epidermal growth factor receptor, or EGFR."
• "When the circulation of gastrin reaches the gastric glands, it causes them to increase the secretion of pepsin three fold and HCl eight fold."