The word plaque or placque may mean:

• Dental plaque, a yellowish film that builds up on the teeth
• Atheromatous plaque, a buildup of fatty deposits within the wall of a blood vessel
• Mucoid plaque, a supposed thick coating of abnormal mucous material in the colon
• Commemorative plaque, a flat ornamental plate or tablet fixed to a wall, used to mark a significant event, person, etc.
• Viral plaque, a visible structure formed by virus propagation within a cell culture
• Amyloid plaque, an extracellular protein buildup implicated in various diseases (Alzheimer's disease, Parkinson's disease).

Plaque or placque may also refer to:

• Plaque, a (usually) small, disk-shaped growth, common in some forms of skin cancer
• Pleural plaque is a term for pleural fibrosis, often caused by exposure to asbestos

Khí-khún-pan | Plaque | Placa bacteriana | Plaque | Tandplaque | Plaque