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   plaque

   /plak/

   noun

   • 1. an ornamental tablet, typically of metal, porcelain, or wood, that is fixed to a wall or other surface in commemoration of a person or event.
   • 2. a sticky deposit on teeth in which bacteria proliferate: "plaque around gum margins can lead to gingivitis"
   • 3. a small, distinct, typically raised patch or region on or within the body resulting from local damage or deposition of material, such as a fatty deposit on an artery wall in atherosclerosis or a site of localized damage of brain tissue in Alzheimer's disease.
   • ▪ a clear area in a cell culture caused by the inhibition of growth or destruction of cells by an agent such as a virus.
   • 4. a flat counter used in gambling.

   Word Origin mid 19th century: from French, from Dutch plak ‘tablet’, from plakken ‘to stick’.

   Scrabble Points: 17

   • P

     3

   • L

     1

   • A

     1

   • Q

     10

   • U

     1

   • E

     1

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