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 →
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)
n another term for →
n a filmy deposit on the surface of a tooth consisting of a mixture of mucus, bacteria, food, etc., (Also called)
English Collins Dictionary - English Definition & Thesaurus
badge, brooch, cartouch(e), medal, medallion, panel, plate, slab, tablet
English Collins Dictionary - English synonyms & Thesaurus
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