/ Dictionary / Index P Polarograph: Meaning and Definition of Find definitions for: Po•lar•o•graph Pronunciation: (pō-lar'u-graf", -gräf", pu-), [key] — Trademark. Trademark. a brand name for an instrument that automatically registers the current in electrolysis at a dropping mercury electrode. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polarogram polarography Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language