tartaric

/tɑːrˈtærɪk/
adjective
  1. Relating to or derived from tartar (a substance formed in wine casks) or tartaric acid.
    • The chemist studied the tartaric residue from the barrel.
    • Tartaric crystals sometimes form on the cork of a wine bottle.
    • Tartaric compounds are important in winemaking.
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