/ Dictionary / Index G gammagram: Meaning and Definition of Find definitions for: gam•ma•gram Pronunciation: (gam'u-gram"), [key] — n. a record of the intensity and distribution of radioactivity in tissue following the application of radioactive tracers; scintigram. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gamma globulin gamma iron Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language