tartaric acid: Meaning and Definition of

tartar'ic ac'id

Pronunciation: [key]
— Chem. Chem.
  1. an organic compound, CHO, existing in four isomeric forms, the common or dextrorotatory isomer being a white, crystalline, water-soluble powder or transparent crystals: used in effervescent beverages, baking powders, confections, photography, and tanning.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.