n. A proton pump inhibitor drug, C16H15F2N3O4S, used in the form of its sodium salt to treat esophagitis caused by gastroesophageal reflux disease and other disorders associated with excess gastric acid secretion. [panto-, origin unknown + -prazole, antiulcer drug suff.; see OMEPRAZOLE.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.