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Noun: plaque  plak [N. Amer], plak or plaak [Brit]
  1. (pathology) a small abnormal patch on or inside the body
  2. A film of mucus and bacteria deposited on the teeth that encourages the development of dental caries
    - dental plaque, bacterial plaque
  3. An inscribed metal or stone plate attached to a wall used to mark a notable person or event, or as a memorial

Derived forms: plaques

Type of: dapple, fleck, maculation, patch, speckle, spot

Encyclopedia: Plaque