esomeprazole
noun
es·omep·ra·zole
| \ ˌes-ō-ˈmep-rə-ˌzōl, -ˈmē-prə-, -ˌzȯl
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Medical Definition of esomeprazole
: an isomer of omeprazole that is administered in the form of its magnesium salt (C17H18N3O3S)2Mg especially in the treatment of erosive esophagitis, gastroesophageal reflux disease, and duodenal ulcer — see nexium