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⇱ plaque - WordReference.com Dictionary of English

plaque

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈplɑːk/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/plæk/ ,USA pronunciation: respelling(plak)


WordReference Random House Learner's Dictionary of American English © 2026
plaque /plæk/USA pronunciation   n. 
  1. a thin, flat plate or tablet of metal, porcelain, etc., intended for ornament, as on a wall, or with writing on it, usually intended to honor someone, placed on a wall, building, or monument:[countable]He received a plaque for his twenty years of service.
  2. Pathology[uncountable] an abnormal, hardened deposit on the inner wall of an artery.
  3. Dentistry[uncountable] a soft, sticky, whitish film that forms on tooth surfaces.

WordReference Random House Unabridged Dictionary of American English © 2026
plaque  (plak),USA pronunciation n. 
  1. a thin, flat plate or tablet of metal, porcelain, etc., intended for ornament, as on a wall, or set in a piece of furniture.
  2. an inscribed commemorative tablet, usually of metal placed on a building, monument, or the like.
  3. a platelike brooch or ornament, esp. one worn as the badge of an honorary order.
  4. Pathology, Anatomy[Anat., Pathol.]a flat, often raised, patch on the skin or other organ, as on the inner lining of arterial walls in atherosclerosis.
  5. Dentistrya soft, sticky, whitish matlike film attached to tooth surfaces, formed largely by the growth of bacteria that colonize the teeth.
  6. Microbiology, Laboratory[Bacteriol.]a cleared region in a bacterial culture, resulting from lysis of bacteria by bacteriophages.
  • Middle Dutch placken to patch; compare placket
  • French, noun, nominal derivative of plaquer to plate
  • 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::
plaque /plæk; plɑːk/ n
  1. an ornamental or commemorative inscribed tablet or plate of porcelain, wood, etc
  2. a small flat brooch or badge, as of a club, etc
  3. any small abnormal patch on or within the body, such as the typical lesion of psoriasis
  4. short for dental plaque
Etymology: 19th Century: from French, from plaquier to plate, from Middle Dutch placken to beat (metal) into a thin plate
'plaque' also found in these entries (note: many are not synonyms or translations):

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