- 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.
- an accumulation of bacteria on teeth
- (medicine) an accumulation of fat, usually cholesterol, in blood vessels
- (biology) a clearing in a bacteria, bacterial lawn caused by a virus
Supplemental Details:Sponsor an extended definition for plaque for as little as $10 per month. Click here to contact us.
Full Definition of plaque