colloidal silver
（ plural ）
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(alternative medicine, pseudoscience) colloid consisting of silver particles suspended in liquid, originally used by doctors from the early 20th century until the 1940s (when antibiotics emerged) and then experiencing a revival from about 1990, when it was marketed with scientifically unsupported claims of it being an essential mineral supplement, or that it can prevent or treat numerous diseases
colloidal silver
Despite the revival of colloidal silver's popularity among health enthusiasts in the 1990s, medical experts warn there is no reliable evidence it can prevent or treat diseases and that it can cause harmful side effects.
Despite the revival of colloidal silver's popularity among health enthusiasts in the 1990s, medical experts warn there is no reliable evidence it can prevent or treat diseases and that it can cause harmful side effects.
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