/ Dictionary / Index I insulinoma: Meaning and Definition of Find definitions for: in•su•li•no•ma Pronunciation: (in"su-lu-nō'mu, ins"yu-), [key] — pl. -mas, -ma•ta a benign tumor of the insulin-secreting cells of the pancreas that may produce signs of hypoglycemia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. insulinize insulin pump Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language