/ Dictionary / Index Z Zollinger-Ellison syndrome: Meaning and Definition of Find definitions for: Zol'ling•er-El'li•son syn"drome Pronunciation: (zol'ing-ur-el'u-sun), [key] — Pathol. Pathol. a condition in which a gastrin-secreting tumor of the pancreas or small intestine causes excessive secretion of gastric juice, leading to intractable peptic ulcers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Zola Zollner illusion Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language