Plaque may refer to:

Commemorations or awards

Commemorative plaque A commemorative plaque, or simply plaque, or in other places referred to as a historical marker, historic marker, or historic plaque, is a plate of metal, ceramic, stone, wood, or other material, bearing text or an image in relief, or both, ...

, a plate, usually fixed to a wall or other vertical surface, meant to mark an event, person, etc. *

Memorial Plaque (medallion) The Memorial Plaque was issued after the First World War to the next-of-kin of all British Empire service personnel who were killed as a result of the war. The plaques (which could be described as large plaquettes) about in diameter, were cast i ...

, issued to next-of-kin of dead British military personnel after World War I *

Plaquette A plaquette (; "small plaque") is a small low relief sculpture in bronze or other materials. These were popular in the Italian Renaissance and later. They may be commemorative, but especially in the Renaissance and Mannerist periods were often ...

, a small plaque in bronze or other materials

Science and healthcare

Amyloid Amyloids are aggregates of proteins characterised by a fibrillar morphology of typically 7–13 nm in diameter, a β-sheet secondary structure (known as cross-β) and ability to be stained by particular dyes, such as Congo red. In the human ...

plaque *

Atheroma An atheroma, or atheromatous plaque, is an abnormal accumulation of material in the tunica intima, inner layer of an arterial wall. The material consists of mostly macrophage, macrophage cells, or debris, containing lipids, calcium and a variabl ...

or atheromatous plaque, a buildup of deposits within the wall of an artery *

Dental plaque Dental plaque is a biofilm of microorganisms (mostly bacteria, but also fungi) that grows on surfaces within the mouth. It is a sticky colorless deposit at first, but when it forms Calculus (dental), tartar, it is often brown or pale yellow. It is ...

, a biofilm that builds up on teeth * A broad

papule A papule is a small, well-defined bump in the skin lesion, skin. It may have a rounded, pointed or flat top, and may have a umbilication, dip. It can appear with a Peduncle (anatomy), stalk, be thread-like or look warty. It can be soft or firm a ...

, a type of cutaneous condition * Pleural plaque, associated with

mesothelioma Mesothelioma is a type of cancer that develops from the thin layer of tissue that covers many of the internal organs (known as the mesothelium). The area most commonly affected is the lining of the lungs and chest wall. Less commonly the lini ...

, cancer often caused by exposure to asbestos *

Senile plaques Amyloid plaques (also known as neuritic plaques, amyloid beta plaques or senile plaques) are extracellular deposits of amyloid beta (Aβ) protein that present mainly in the grey matter of the brain. Degeneration (medical), Degenerative neuronal ...

, an extracellular protein deposit in the brain implicated in Alzheimer's disease *

Skin plaque A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of this sys ...

, a plateau-like lesion that is greater in its diameter than in its depth *

Viral plaque A viral plaque is a visible structure formed after introducing a viral sample to a cell culture grown on some nutrient medium. The virus will replicate and spread, generating regions of cell destruction known as plaques. For example, Vero cell o ...

, a visible structure formed by virus propagation within a cell culture

Other uses

* Plaque, a rectangular

casino token Casino chips (also known as poker chips, gaming tokens, or checks/cheques) are small discs used as currency in casinos. Larger, rectangular gaming plaques may be used for high-stakes games. Poker chips are also widely used as play money in cas ...

Commemorations or awards

Science and healthcare

Other uses

See also