Noun: plaque plak [N. Amer], plak or plaak [Brit]
- An inscribed metal or stone plate attached to a wall used to mark a notable person or event, or as a memorial
"A bronze plaque commemorating the building's historical significance was unveiled at the ceremony"
- A film of mucus and bacteria deposited on the teeth that encourages the development of dental caries
"Regular brushing and flossing help remove dental plaque";
- dental plaque, bacterial plaque
- (pathology) a small abnormal patch on or inside the body
"Dental plaque can lead to tooth decay if not removed regularly"
Derived forms: plaques
Type of: dapple, fleck, maculation, patch, speckle, spot
Encyclopedia: Plaque