Plaque

English Meaning

Any flat, thin piece of metal, clay, ivory, or the like, used for ornament, or for painting pictures upon, as a slab, plate, dish, or the like, hung upon a wall; also, a smaller decoration worn on the person, as a brooch.

1. A flat plate, slab, or disk that is ornamented or engraved for mounting, as on a wall for decoration or on a monument for information.
2. A small pin or brooch worn as an ornament or a badge of membership.
3. Pathology A small disk-shaped formation or growth; a patch.
4. A deposit of fatty material on the inner lining of an arterial wall, characteristic of atherosclerosis.
5. A scaly patch formed on the skin by psoriasis.
6. A film of mucus and bacteria on a tooth surface.
7. A clear, often round patch of lysed cells in an otherwise opaque layer of a bacteria or cell culture.