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Meaning of Polarograph

Po•lar•o•graph

Pronunciation: (pō-lar'u-graf", -gräf", pu-), [key]
— Trademark. Trademark.
  1. 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.