/ Dictionary / Index M metallograph: Meaning and Definition of Find definitions for: me•tal•lo•graph Pronunciation: (mu-tal'u-graf", -gräf"), [key] — n. a microscope for observing the microstructure of metals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metallocene metallography Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language