Définition "plaque" dans le dictionnaire Collins English Dictionary & Thesaurus

plaque n

1 an ornamental or commemorative inscribed tablet or plate of porcelain, wood, etc.

2 a small flat brooch or badge, as of a club, etc.

3 (Pathol) any small abnormal patch on or within the body, such as the typical lesion of psoriasis

4 short for → dental plaque

5 (Bacteriol) a clear area within a bacterial or tissue culture caused by localized destruction of the cells by a bacteriophage or other virus
(C19: from French, from plaquier to plate, from Middle Dutch placken to beat (metal) into a thin plate)

bacterial plaque n another term for → dental plaque

dental plaque n
a filmy deposit on the surface of a tooth consisting of a mixture of mucus, bacteria, food, etc., (Also called) bacterial plaque