Plaque

Plaque may refer to:

Commemorations or awards

Commemorative plaque, a plate, usually fixed to a wall or other vertical surface, meant to mark an event, person, etc.
Memorial Plaque (medallion), issued to next-of-kin of dead British military personnel after World War I
Plaquette, a small plaque in bronze or other materials

Amyloid plaque
Atheroma or atheromatous plaque, a buildup of deposits within the wall of an artery
Dental plaque, a biofilm that builds up on teeth
A broad papule, a type of cutaneous condition
Pleural plaque, associated with mesothelioma, cancer often caused by exposure to asbestos
Senile plaques, an extracellular protein deposit in the brain implicated in Alzheimer's disease
Skin plaque, a plateau-like lesion that is greater in its diameter than in its depth
Viral plaque, a visible structure formed by virus propagation within a cell culture