Definition of plaque noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//plæk//
    , also BrE//plɑːk//
    ; NAmE NAmE//plæk//
    Historic buildings, Mouth and teeth
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  1. 1[countable] a flat piece of stone, metal, etc., usually with a name and dates on, attached to a wall in memory of a person or an event A bronze plaque marks the house where the poet was born. See related entries: Historic buildings
  2. 2[uncountable] a soft substance that forms on teeth and encourages the growth of harmful bacteria Remove plaque by brushing your teeth regularly. compare scale See related entries: Mouth and teeth
  3. Word Originmid 19th cent.: from French, from Dutch plak ‘tablet’, from plakken ‘to stick’.Extra examples Brushing prevents a build-up of plaque and tartar on the teeth. Gum disease happens when plaque builds up. Some Latin words were engraved on the plaque. The local historical society put up a plaque at the site of the battle. There is a commemorative plaque to the artist in the village hall. There is a commemorative plaque to those lost at sea. a plaque on the wall
See the Oxford Advanced American Dictionary entry: plaque

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